2571640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{269}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 5832000

約数和(自身を除く): 3260360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 269, 478, 538, 956, 1076, 1195, 1345, 1912, 2152, 2390, 2690, 4780, 5380, 9560, 10760, 64291, 128582, 257164, 321455, 514328, 642910, 1285820, 2571640]

約数ペア:

[(1, 2571640), (2, 1285820), (4, 642910), (5, 514328), (8, 321455), (10, 257164), (20, 128582), (40, 64291), (239, 10760), (269, 9560), (478, 5380), (538, 4780), (956, 2690), (1076, 2390), (1195, 2152), (1345, 1912)]