90309880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1039}}^1$

素因数の和:1144

約数の個数: 64

約数和(自身を含む): 212284800

約数和(自身を除く): 121974920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 820, 1039, 1060, 1640, 2078, 2120, 2173, 4156, 4346, 5195, 8312, 8692, 10390, 10865, 17384, 20780, 21730, 41560, 42599, 43460, 55067, 85198, 86920, 110134, 170396, 212995, 220268, 275335, 340792, 425990, 440536, 550670, 851980, 1101340, 1703960, 2202680, 2257747, 4515494, 9030988, 11288735, 18061976, 22577470, 45154940, 90309880]

約数ペア:

[(1, 90309880), (2, 45154940), (4, 22577470), (5, 18061976), (8, 11288735), (10, 9030988), (20, 4515494), (40, 2257747), (41, 2202680), (53, 1703960), (82, 1101340), (106, 851980), (164, 550670), (205, 440536), (212, 425990), (265, 340792), (328, 275335), (410, 220268), (424, 212995), (530, 170396), (820, 110134), (1039, 86920), (1060, 85198), (1640, 55067), (2078, 43460), (2120, 42599), (2173, 41560), (4156, 21730), (4346, 20780), (5195, 17384), (8312, 10865), (8692, 10390)]