18504375

素因数分解:

$3^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 40

約数和(自身を含む): 31489920

約数和(自身を除く): 12985545

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 139, 213, 355, 375, 417, 625, 695, 1065, 1775, 1875, 2085, 3475, 5325, 8875, 9869, 10425, 17375, 26625, 29607, 44375, 49345, 52125, 86875, 133125, 148035, 246725, 260625, 740175, 1233625, 3700875, 6168125, 18504375]

約数ペア:

[(1, 18504375), (3, 6168125), (5, 3700875), (15, 1233625), (25, 740175), (71, 260625), (75, 246725), (125, 148035), (139, 133125), (213, 86875), (355, 52125), (375, 49345), (417, 44375), (625, 29607), (695, 26625), (1065, 17375), (1775, 10425), (1875, 9869), (2085, 8875), (3475, 5325)]