72439840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:626

約数の個数: 96

約数和(自身を含む): 189423360

約数和(自身を除く): 116983520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 79, 80, 88, 110, 158, 160, 176, 220, 316, 352, 395, 440, 521, 632, 790, 869, 880, 1042, 1264, 1580, 1738, 1760, 2084, 2528, 2605, 3160, 3476, 4168, 4345, 5210, 5731, 6320, 6952, 8336, 8690, 10420, 11462, 12640, 13904, 16672, 17380, 20840, 22924, 27808, 28655, 34760, 41159, 41680, 45848, 57310, 69520, 82318, 83360, 91696, 114620, 139040, 164636, 183392, 205795, 229240, 329272, 411590, 452749, 458480, 658544, 823180, 905498, 916960, 1317088, 1646360, 1810996, 2263745, 3292720, 3621992, 4527490, 6585440, 7243984, 9054980, 14487968, 18109960, 36219920, 72439840]

約数ペア:

[(1, 72439840), (2, 36219920), (4, 18109960), (5, 14487968), (8, 9054980), (10, 7243984), (11, 6585440), (16, 4527490), (20, 3621992), (22, 3292720), (32, 2263745), (40, 1810996), (44, 1646360), (55, 1317088), (79, 916960), (80, 905498), (88, 823180), (110, 658544), (158, 458480), (160, 452749), (176, 411590), (220, 329272), (316, 229240), (352, 205795), (395, 183392), (440, 164636), (521, 139040), (632, 114620), (790, 91696), (869, 83360), (880, 82318), (1042, 69520), (1264, 57310), (1580, 45848), (1738, 41680), (1760, 41159), (2084, 34760), (2528, 28655), (2605, 27808), (3160, 22924), (3476, 20840), (4168, 17380), (4345, 16672), (5210, 13904), (5731, 12640), (6320, 11462), (6952, 10420), (8336, 8690)]