20100285985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{21211}}^1$

素因数の和:21529

約数の個数: 32

約数和(自身を含む): 26513303040

約数和(自身を除く): 6413017055

約数列:

[1, 5, 13, 61, 65, 239, 305, 793, 1195, 3107, 3965, 14579, 15535, 21211, 72895, 106055, 189527, 275743, 947635, 1293871, 1378715, 5069429, 6469355, 16820323, 25347145, 65902577, 84101615, 309235169, 329512885, 1546175845, 4020057197, 20100285985]

約数ペア:

[(1, 20100285985), (5, 4020057197), (13, 1546175845), (61, 329512885), (65, 309235169), (239, 84101615), (305, 65902577), (793, 25347145), (1195, 16820323), (3107, 6469355), (3965, 5069429), (14579, 1378715), (15535, 1293871), (21211, 947635), (72895, 275743), (106055, 189527)]