18123504375

素因数分解:

$3^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{136139}}^1$

素因数の和:136233

約数の個数: 40

約数和(自身を含む): 30621697920

約数和(自身を除く): 12498193545

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 625, 1065, 1775, 1875, 5325, 8875, 26625, 44375, 133125, 136139, 408417, 680695, 2042085, 3403475, 9665869, 10210425, 17017375, 28997607, 48329345, 51052125, 85086875, 144988035, 241646725, 255260625, 724940175, 1208233625, 3624700875, 6041168125, 18123504375]

約数ペア:

[(1, 18123504375), (3, 6041168125), (5, 3624700875), (15, 1208233625), (25, 724940175), (71, 255260625), (75, 241646725), (125, 144988035), (213, 85086875), (355, 51052125), (375, 48329345), (625, 28997607), (1065, 17017375), (1775, 10210425), (1875, 9665869), (5325, 3403475), (8875, 2042085), (26625, 680695), (44375, 408417), (133125, 136139)]