15232780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 18313460

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 311, 316, 395, 620, 622, 790, 1244, 1555, 1580, 2449, 3110, 4898, 6220, 9641, 9796, 12245, 19282, 24490, 24569, 38564, 48205, 48980, 49138, 96410, 98276, 122845, 192820, 245690, 491380, 761639, 1523278, 3046556, 3808195, 7616390, 15232780]

約数ペア:

[(1, 15232780), (2, 7616390), (4, 3808195), (5, 3046556), (10, 1523278), (20, 761639), (31, 491380), (62, 245690), (79, 192820), (124, 122845), (155, 98276), (158, 96410), (310, 49138), (311, 48980), (316, 48205), (395, 38564), (620, 24569), (622, 24490), (790, 19282), (1244, 12245), (1555, 9796), (1580, 9641), (2449, 6220), (3110, 4898)]