1987500

素因数分解:

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

素因数の和:85

約数の個数: 72

約数和(自身を含む): 5905872

約数和(自身を除く): 3918372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 125, 150, 159, 212, 250, 265, 300, 318, 375, 500, 530, 625, 636, 750, 795, 1060, 1250, 1325, 1500, 1590, 1875, 2500, 2650, 3125, 3180, 3750, 3975, 5300, 6250, 6625, 7500, 7950, 9375, 12500, 13250, 15900, 18750, 19875, 26500, 33125, 37500, 39750, 66250, 79500, 99375, 132500, 165625, 198750, 331250, 397500, 496875, 662500, 993750, 1987500]

約数ペア:

[(1, 1987500), (2, 993750), (3, 662500), (4, 496875), (5, 397500), (6, 331250), (10, 198750), (12, 165625), (15, 132500), (20, 99375), (25, 79500), (30, 66250), (50, 39750), (53, 37500), (60, 33125), (75, 26500), (100, 19875), (106, 18750), (125, 15900), (150, 13250), (159, 12500), (212, 9375), (250, 7950), (265, 7500), (300, 6625), (318, 6250), (375, 5300), (500, 3975), (530, 3750), (625, 3180), (636, 3125), (750, 2650), (795, 2500), (1060, 1875), (1250, 1590), (1325, 1500)]