31287750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3209}}^1$

素因数の和:3242

約数の個数: 64

約数和(自身を含む): 84127680

約数和(自身を除く): 52839930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 3209, 3250, 4875, 6418, 9627, 9750, 16045, 19254, 32090, 41717, 48135, 80225, 83434, 96270, 125151, 160450, 208585, 240675, 250302, 401125, 417170, 481350, 625755, 802250, 1042925, 1203375, 1251510, 2085850, 2406750, 3128775, 5214625, 6257550, 10429250, 15643875, 31287750]

約数ペア:

[(1, 31287750), (2, 15643875), (3, 10429250), (5, 6257550), (6, 5214625), (10, 3128775), (13, 2406750), (15, 2085850), (25, 1251510), (26, 1203375), (30, 1042925), (39, 802250), (50, 625755), (65, 481350), (75, 417170), (78, 401125), (125, 250302), (130, 240675), (150, 208585), (195, 160450), (250, 125151), (325, 96270), (375, 83434), (390, 80225), (650, 48135), (750, 41717), (975, 32090), (1625, 19254), (1950, 16045), (3209, 9750), (3250, 9627), (4875, 6418)]