28155075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 50996736

約数和(自身を除く): 22841661

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 67, 75, 195, 201, 325, 335, 431, 871, 975, 1005, 1293, 1675, 2155, 2613, 4355, 5025, 5603, 6465, 10775, 13065, 16809, 21775, 28015, 28877, 32325, 65325, 84045, 86631, 140075, 144385, 375401, 420225, 433155, 721925, 1126203, 1877005, 2165775, 5631015, 9385025, 28155075]

約数ペア:

[(1, 28155075), (3, 9385025), (5, 5631015), (13, 2165775), (15, 1877005), (25, 1126203), (39, 721925), (65, 433155), (67, 420225), (75, 375401), (195, 144385), (201, 140075), (325, 86631), (335, 84045), (431, 65325), (871, 32325), (975, 28877), (1005, 28015), (1293, 21775), (1675, 16809), (2155, 13065), (2613, 10775), (4355, 6465), (5025, 5603)]