90189040

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 216950400

約数和(自身を除く): 126761360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 89, 106, 178, 212, 239, 265, 356, 424, 445, 478, 530, 712, 848, 890, 956, 1060, 1195, 1424, 1780, 1912, 2120, 2390, 3560, 3824, 4240, 4717, 4780, 7120, 9434, 9560, 12667, 18868, 19120, 21271, 23585, 25334, 37736, 42542, 47170, 50668, 63335, 75472, 85084, 94340, 101336, 106355, 126670, 170168, 188680, 202672, 212710, 253340, 340336, 377360, 425420, 506680, 850840, 1013360, 1127363, 1701680, 2254726, 4509452, 5636815, 9018904, 11273630, 18037808, 22547260, 45094520, 90189040]

約数ペア:

[(1, 90189040), (2, 45094520), (4, 22547260), (5, 18037808), (8, 11273630), (10, 9018904), (16, 5636815), (20, 4509452), (40, 2254726), (53, 1701680), (80, 1127363), (89, 1013360), (106, 850840), (178, 506680), (212, 425420), (239, 377360), (265, 340336), (356, 253340), (424, 212710), (445, 202672), (478, 188680), (530, 170168), (712, 126670), (848, 106355), (890, 101336), (956, 94340), (1060, 85084), (1195, 75472), (1424, 63335), (1780, 50668), (1912, 47170), (2120, 42542), (2390, 37736), (3560, 25334), (3824, 23585), (4240, 21271), (4717, 19120), (4780, 18868), (7120, 12667), (9434, 9560)]