216150325

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{29917}}^1$

素因数の和:29961

約数の個数: 18

約数和(自身を含む): 284729606

約数和(自身を除く): 68579281

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 29917, 149585, 508589, 747925, 2542945, 8646013, 12714725, 43230065, 216150325]

約数ペア:

[(1, 216150325), (5, 43230065), (17, 12714725), (25, 8646013), (85, 2542945), (289, 747925), (425, 508589), (1445, 149585), (7225, 29917)]