64711120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 156396240

約数和(自身を除く): 91685120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 181, 205, 218, 328, 362, 410, 436, 545, 656, 724, 820, 872, 905, 1090, 1448, 1640, 1744, 1810, 2180, 2896, 3280, 3620, 4360, 4469, 7240, 7421, 8720, 8938, 14480, 14842, 17876, 19729, 22345, 29684, 35752, 37105, 39458, 44690, 59368, 71504, 74210, 78916, 89380, 98645, 118736, 148420, 157832, 178760, 197290, 296840, 315664, 357520, 394580, 593680, 789160, 808889, 1578320, 1617778, 3235556, 4044445, 6471112, 8088890, 12942224, 16177780, 32355560, 64711120]

約数ペア:

[(1, 64711120), (2, 32355560), (4, 16177780), (5, 12942224), (8, 8088890), (10, 6471112), (16, 4044445), (20, 3235556), (40, 1617778), (41, 1578320), (80, 808889), (82, 789160), (109, 593680), (164, 394580), (181, 357520), (205, 315664), (218, 296840), (328, 197290), (362, 178760), (410, 157832), (436, 148420), (545, 118736), (656, 98645), (724, 89380), (820, 78916), (872, 74210), (905, 71504), (1090, 59368), (1448, 44690), (1640, 39458), (1744, 37105), (1810, 35752), (2180, 29684), (2896, 22345), (3280, 19729), (3620, 17876), (4360, 14842), (4469, 14480), (7240, 8938), (7421, 8720)]