1639576328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{65963}}^1$

素因数の和:66221

約数の個数: 32

約数和(自身を含む): 3324585600

約数和(自身を除く): 1685009272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 956, 1912, 3107, 6214, 12428, 24856, 65963, 131926, 263852, 527704, 857519, 1715038, 3430076, 6860152, 15765157, 31530314, 63060628, 126121256, 204947041, 409894082, 819788164, 1639576328]

約数ペア:

[(1, 1639576328), (2, 819788164), (4, 409894082), (8, 204947041), (13, 126121256), (26, 63060628), (52, 31530314), (104, 15765157), (239, 6860152), (478, 3430076), (956, 1715038), (1912, 857519), (3107, 527704), (6214, 263852), (12428, 131926), (24856, 65963)]