28757789720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:706

約数の個数: 256

約数和(自身を含む): 76826880000

約数和(自身を除く): 48069090280

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 37, 38, 40, 44, 55, 74, 76, 88, 95, 110, 148, 152, 185, 190, 209, 220, 239, 296, 370, 380, 389, 407, 418, 440, 478, 703, 740, 760, 778, 814, 836, 956, 1045, 1195, 1406, 1480, 1556, 1628, 1672, 1912, 1945, 2035, 2090, 2390, 2629, 2812, 3112, 3256, 3515, 3890, 4070, 4180, 4279, 4541, 4780, 5258, 5624, 7030, 7391, 7733, 7780, 8140, 8360, 8558, 8843, 9082, 9560, 10516, 13145, 14060, 14393, 14782, 15466, 15560, 16280, 17116, 17686, 18164, 21032, 21395, 22705, 26290, 28120, 28786, 29564, 30932, 34232, 35372, 36328, 36955, 38665, 42790, 44215, 45410, 49951, 52580, 57572, 59128, 61864, 70744, 71965, 73910, 77330, 81301, 85580, 88430, 90820, 92971, 97273, 99902, 105160, 115144, 143930, 147820, 154660, 158323, 162602, 168017, 171160, 176860, 181640, 185942, 194546, 199804, 249755, 273467, 287860, 295640, 309320, 316646, 325204, 336034, 353720, 371884, 389092, 399608, 406505, 464855, 486365, 499510, 546934, 575720, 633292, 650408, 672068, 743768, 778184, 791615, 813010, 840085, 929710, 972730, 999020, 1022681, 1093868, 1266584, 1344136, 1367335, 1583230, 1626020, 1680170, 1766449, 1848187, 1859420, 1945460, 1998040, 2045362, 2187736, 2734670, 3008137, 3166460, 3252040, 3360340, 3439927, 3532898, 3696374, 3718840, 3890920, 4090724, 5113405, 5469340, 6016274, 6332920, 6720680, 6879854, 7065796, 7392748, 8181448, 8832245, 9240935, 10226810, 10938680, 12032548, 13759708, 14131592, 14785496, 15040685, 17199635, 17664490, 18481870, 19430939, 20453620, 24065096, 27519416, 30081370, 34399270, 35328980, 36963740, 37839197, 38861878, 40907240, 60162740, 65358613, 68798540, 70657960, 73927480, 75678394, 77723756, 97154695, 120325480, 130717226, 137597080, 151356788, 155447512, 189195985, 194309390, 261434452, 302713576, 326793065, 378391970, 388618780, 522868904, 653586130, 718944743, 756783940, 777237560, 1307172260, 1437889486, 1513567880, 2614344520, 2875778972, 3594723715, 5751557944, 7189447430, 14378894860, 28757789720]

約数ペア:

[(1, 28757789720), (2, 14378894860), (4, 7189447430), (5, 5751557944), (8, 3594723715), (10, 2875778972), (11, 2614344520), (19, 1513567880), (20, 1437889486), (22, 1307172260), (37, 777237560), (38, 756783940), (40, 718944743), (44, 653586130), (55, 522868904), (74, 388618780), (76, 378391970), (88, 326793065), (95, 302713576), (110, 261434452), (148, 194309390), (152, 189195985), (185, 155447512), (190, 151356788), (209, 137597080), (220, 130717226), (239, 120325480), (296, 97154695), (370, 77723756), (380, 75678394), (389, 73927480), (407, 70657960), (418, 68798540), (440, 65358613), (478, 60162740), (703, 40907240), (740, 38861878), (760, 37839197), (778, 36963740), (814, 35328980), (836, 34399270), (956, 30081370), (1045, 27519416), (1195, 24065096), (1406, 20453620), (1480, 19430939), (1556, 18481870), (1628, 17664490), (1672, 17199635), (1912, 15040685), (1945, 14785496), (2035, 14131592), (2090, 13759708), (2390, 12032548), (2629, 10938680), (2812, 10226810), (3112, 9240935), (3256, 8832245), (3515, 8181448), (3890, 7392748), (4070, 7065796), (4180, 6879854), (4279, 6720680), (4541, 6332920), (4780, 6016274), (5258, 5469340), (5624, 5113405), (7030, 4090724), (7391, 3890920), (7733, 3718840), (7780, 3696374), (8140, 3532898), (8360, 3439927), (8558, 3360340), (8843, 3252040), (9082, 3166460), (9560, 3008137), (10516, 2734670), (13145, 2187736), (14060, 2045362), (14393, 1998040), (14782, 1945460), (15466, 1859420), (15560, 1848187), (16280, 1766449), (17116, 1680170), (17686, 1626020), (18164, 1583230), (21032, 1367335), (21395, 1344136), (22705, 1266584), (26290, 1093868), (28120, 1022681), (28786, 999020), (29564, 972730), (30932, 929710), (34232, 840085), (35372, 813010), (36328, 791615), (36955, 778184), (38665, 743768), (42790, 672068), (44215, 650408), (45410, 633292), (49951, 575720), (52580, 546934), (57572, 499510), (59128, 486365), (61864, 464855), (70744, 406505), (71965, 399608), (73910, 389092), (77330, 371884), (81301, 353720), (85580, 336034), (88430, 325204), (90820, 316646), (92971, 309320), (97273, 295640), (99902, 287860), (105160, 273467), (115144, 249755), (143930, 199804), (147820, 194546), (154660, 185942), (158323, 181640), (162602, 176860), (168017, 171160)]