71520275

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:584

約数の個数: 36

約数和(自身を含む): 99357480

約数和(自身を除く): 27837205

約数列:

[1, 5, 17, 19, 25, 85, 95, 289, 323, 425, 475, 521, 1445, 1615, 2605, 5491, 7225, 8075, 8857, 9899, 13025, 27455, 44285, 49495, 137275, 150569, 168283, 221425, 247475, 752845, 841415, 2860811, 3764225, 4207075, 14304055, 71520275]

約数ペア:

[(1, 71520275), (5, 14304055), (17, 4207075), (19, 3764225), (25, 2860811), (85, 841415), (95, 752845), (289, 247475), (323, 221425), (425, 168283), (475, 150569), (521, 137275), (1445, 49495), (1615, 44285), (2605, 27455), (5491, 13025), (7225, 9899), (8075, 8857)]