31089175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 36

約数和(自身を含む): 44235016

約数和(自身を除く): 13145841

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 289, 325, 331, 425, 1105, 1445, 1655, 3757, 4303, 5525, 5627, 7225, 8275, 18785, 21515, 28135, 73151, 93925, 95659, 107575, 140675, 365755, 478295, 1243567, 1828775, 2391475, 6217835, 31089175]

約数ペア:

[(1, 31089175), (5, 6217835), (13, 2391475), (17, 1828775), (25, 1243567), (65, 478295), (85, 365755), (221, 140675), (289, 107575), (325, 95659), (331, 93925), (425, 73151), (1105, 28135), (1445, 21515), (1655, 18785), (3757, 8275), (4303, 7225), (5525, 5627)]