20107125

素因数分解:

$3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 36966384

約数和(自身を除く): 16859259

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 125, 183, 225, 293, 305, 375, 549, 879, 915, 1125, 1465, 1525, 2637, 2745, 4395, 4575, 7325, 7625, 13185, 13725, 17873, 21975, 22875, 36625, 53619, 65925, 68625, 89365, 109875, 160857, 268095, 329625, 446825, 804285, 1340475, 2234125, 4021425, 6702375, 20107125]

約数ペア:

[(1, 20107125), (3, 6702375), (5, 4021425), (9, 2234125), (15, 1340475), (25, 804285), (45, 446825), (61, 329625), (75, 268095), (125, 160857), (183, 109875), (225, 89365), (293, 68625), (305, 65925), (375, 53619), (549, 36625), (879, 22875), (915, 21975), (1125, 17873), (1465, 13725), (1525, 13185), (2637, 7625), (2745, 7325), (4395, 4575)]