72245665

素因数分解:

$5^1\times {\mathrm{17}}^4\times {\mathrm{173}}^1$

素因数の和:246

約数の個数: 20

約数和(自身を含む): 92645604

約数和(自身を除く): 20399939

約数列:

[1, 5, 17, 85, 173, 289, 865, 1445, 2941, 4913, 14705, 24565, 49997, 83521, 249985, 417605, 849949, 4249745, 14449133, 72245665]

約数ペア:

[(1, 72245665), (5, 14449133), (17, 4249745), (85, 849949), (173, 417605), (289, 249985), (865, 83521), (1445, 49997), (2941, 24565), (4913, 14705)]