18144720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 240

約数和(自身を含む): 69638400

約数和(自身を除く): 51493680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 29, 30, 33, 36, 40, 44, 45, 48, 55, 58, 60, 66, 72, 79, 80, 87, 88, 90, 99, 110, 116, 120, 132, 144, 145, 158, 165, 174, 176, 180, 198, 220, 232, 237, 240, 261, 264, 290, 316, 319, 330, 348, 360, 395, 396, 435, 440, 464, 474, 495, 522, 528, 580, 632, 638, 660, 696, 711, 720, 790, 792, 869, 870, 880, 948, 957, 990, 1044, 1160, 1185, 1264, 1276, 1305, 1320, 1392, 1422, 1580, 1584, 1595, 1738, 1740, 1896, 1914, 1980, 2088, 2291, 2320, 2370, 2552, 2607, 2610, 2640, 2844, 2871, 3160, 3190, 3476, 3480, 3555, 3792, 3828, 3960, 4176, 4345, 4582, 4740, 4785, 5104, 5214, 5220, 5688, 5742, 6320, 6380, 6873, 6952, 6960, 7110, 7656, 7821, 7920, 8690, 9164, 9480, 9570, 10428, 10440, 11376, 11455, 11484, 12760, 13035, 13746, 13904, 14220, 14355, 15312, 15642, 17380, 18328, 18960, 19140, 20619, 20856, 20880, 22910, 22968, 25201, 25520, 26070, 27492, 28440, 28710, 31284, 34365, 34760, 36656, 38280, 39105, 41238, 41712, 45820, 45936, 50402, 52140, 54984, 56880, 57420, 62568, 68730, 69520, 75603, 76560, 78210, 82476, 91640, 100804, 103095, 104280, 109968, 114840, 125136, 126005, 137460, 151206, 156420, 164952, 183280, 201608, 206190, 208560, 226809, 229680, 252010, 274920, 302412, 312840, 329904, 378015, 403216, 412380, 453618, 504020, 549840, 604824, 625680, 756030, 824760, 907236, 1008040, 1134045, 1209648, 1512060, 1649520, 1814472, 2016080, 2268090, 3024120, 3628944, 4536180, 6048240, 9072360, 18144720]

約数ペア:

[(1, 18144720), (2, 9072360), (3, 6048240), (4, 4536180), (5, 3628944), (6, 3024120), (8, 2268090), (9, 2016080), (10, 1814472), (11, 1649520), (12, 1512060), (15, 1209648), (16, 1134045), (18, 1008040), (20, 907236), (22, 824760), (24, 756030), (29, 625680), (30, 604824), (33, 549840), (36, 504020), (40, 453618), (44, 412380), (45, 403216), (48, 378015), (55, 329904), (58, 312840), (60, 302412), (66, 274920), (72, 252010), (79, 229680), (80, 226809), (87, 208560), (88, 206190), (90, 201608), (99, 183280), (110, 164952), (116, 156420), (120, 151206), (132, 137460), (144, 126005), (145, 125136), (158, 114840), (165, 109968), (174, 104280), (176, 103095), (180, 100804), (198, 91640), (220, 82476), (232, 78210), (237, 76560), (240, 75603), (261, 69520), (264, 68730), (290, 62568), (316, 57420), (319, 56880), (330, 54984), (348, 52140), (360, 50402), (395, 45936), (396, 45820), (435, 41712), (440, 41238), (464, 39105), (474, 38280), (495, 36656), (522, 34760), (528, 34365), (580, 31284), (632, 28710), (638, 28440), (660, 27492), (696, 26070), (711, 25520), (720, 25201), (790, 22968), (792, 22910), (869, 20880), (870, 20856), (880, 20619), (948, 19140), (957, 18960), (990, 18328), (1044, 17380), (1160, 15642), (1185, 15312), (1264, 14355), (1276, 14220), (1305, 13904), (1320, 13746), (1392, 13035), (1422, 12760), (1580, 11484), (1584, 11455), (1595, 11376), (1738, 10440), (1740, 10428), (1896, 9570), (1914, 9480), (1980, 9164), (2088, 8690), (2291, 7920), (2320, 7821), (2370, 7656), (2552, 7110), (2607, 6960), (2610, 6952), (2640, 6873), (2844, 6380), (2871, 6320), (3160, 5742), (3190, 5688), (3476, 5220), (3480, 5214), (3555, 5104), (3792, 4785), (3828, 4740), (3960, 4582), (4176, 4345)]