20078520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 256

約数和(自身を含む): 78382080

約数和(自身を除く): 58303560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 41, 42, 44, 53, 55, 56, 60, 66, 70, 77, 82, 84, 88, 105, 106, 110, 120, 123, 132, 140, 154, 159, 164, 165, 168, 205, 210, 212, 220, 231, 246, 264, 265, 280, 287, 308, 318, 328, 330, 371, 385, 410, 420, 424, 440, 451, 462, 492, 530, 574, 583, 615, 616, 636, 660, 742, 770, 795, 820, 840, 861, 902, 924, 984, 1060, 1113, 1148, 1155, 1166, 1230, 1272, 1320, 1353, 1435, 1484, 1540, 1590, 1640, 1722, 1749, 1804, 1848, 1855, 2120, 2173, 2226, 2255, 2296, 2310, 2332, 2460, 2706, 2870, 2915, 2968, 3080, 3157, 3180, 3444, 3498, 3608, 3710, 4081, 4305, 4346, 4452, 4510, 4620, 4664, 4920, 5412, 5565, 5740, 5830, 6314, 6360, 6519, 6765, 6888, 6996, 7420, 8162, 8610, 8692, 8745, 8904, 9020, 9240, 9471, 10824, 10865, 11130, 11480, 11660, 12243, 12628, 13038, 13530, 13992, 14840, 15211, 15785, 16324, 17220, 17384, 17490, 18040, 18942, 20405, 21730, 22260, 23320, 23903, 24486, 25256, 26076, 27060, 30422, 31570, 32595, 32648, 34440, 34980, 37884, 40810, 43460, 44520, 45633, 47355, 47806, 48972, 52152, 54120, 60844, 61215, 63140, 65190, 69960, 71709, 75768, 76055, 81620, 86920, 91266, 94710, 95612, 97944, 119515, 121688, 122430, 126280, 130380, 143418, 152110, 163240, 167321, 182532, 189420, 191224, 228165, 239030, 244860, 260760, 286836, 304220, 334642, 358545, 365064, 378840, 456330, 478060, 489720, 501963, 573672, 608440, 669284, 717090, 836605, 912660, 956120, 1003926, 1338568, 1434180, 1673210, 1825320, 2007852, 2509815, 2868360, 3346420, 4015704, 5019630, 6692840, 10039260, 20078520]

約数ペア:

[(1, 20078520), (2, 10039260), (3, 6692840), (4, 5019630), (5, 4015704), (6, 3346420), (7, 2868360), (8, 2509815), (10, 2007852), (11, 1825320), (12, 1673210), (14, 1434180), (15, 1338568), (20, 1003926), (21, 956120), (22, 912660), (24, 836605), (28, 717090), (30, 669284), (33, 608440), (35, 573672), (40, 501963), (41, 489720), (42, 478060), (44, 456330), (53, 378840), (55, 365064), (56, 358545), (60, 334642), (66, 304220), (70, 286836), (77, 260760), (82, 244860), (84, 239030), (88, 228165), (105, 191224), (106, 189420), (110, 182532), (120, 167321), (123, 163240), (132, 152110), (140, 143418), (154, 130380), (159, 126280), (164, 122430), (165, 121688), (168, 119515), (205, 97944), (210, 95612), (212, 94710), (220, 91266), (231, 86920), (246, 81620), (264, 76055), (265, 75768), (280, 71709), (287, 69960), (308, 65190), (318, 63140), (328, 61215), (330, 60844), (371, 54120), (385, 52152), (410, 48972), (420, 47806), (424, 47355), (440, 45633), (451, 44520), (462, 43460), (492, 40810), (530, 37884), (574, 34980), (583, 34440), (615, 32648), (616, 32595), (636, 31570), (660, 30422), (742, 27060), (770, 26076), (795, 25256), (820, 24486), (840, 23903), (861, 23320), (902, 22260), (924, 21730), (984, 20405), (1060, 18942), (1113, 18040), (1148, 17490), (1155, 17384), (1166, 17220), (1230, 16324), (1272, 15785), (1320, 15211), (1353, 14840), (1435, 13992), (1484, 13530), (1540, 13038), (1590, 12628), (1640, 12243), (1722, 11660), (1749, 11480), (1804, 11130), (1848, 10865), (1855, 10824), (2120, 9471), (2173, 9240), (2226, 9020), (2255, 8904), (2296, 8745), (2310, 8692), (2332, 8610), (2460, 8162), (2706, 7420), (2870, 6996), (2915, 6888), (2968, 6765), (3080, 6519), (3157, 6360), (3180, 6314), (3444, 5830), (3498, 5740), (3608, 5565), (3710, 5412), (4081, 4920), (4305, 4664), (4346, 4620), (4452, 4510)]