31208515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 43497216

約数和(自身を除く): 12288701

約数列:

[1, 5, 13, 17, 61, 65, 85, 221, 305, 463, 793, 1037, 1105, 2315, 3965, 5185, 6019, 7871, 13481, 28243, 30095, 39355, 67405, 102323, 141215, 367159, 480131, 511615, 1835795, 2400655, 6241703, 31208515]

約数ペア:

[(1, 31208515), (5, 6241703), (13, 2400655), (17, 1835795), (61, 511615), (65, 480131), (85, 367159), (221, 141215), (305, 102323), (463, 67405), (793, 39355), (1037, 30095), (1105, 28243), (2315, 13481), (3965, 7871), (5185, 6019)]