645155290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{215771}}^1$

素因数の和:215814

約数の個数: 32

約数和(自身を含む): 1304989056

約数和(自身を除く): 659833766

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 215771, 431542, 1078855, 2157710, 2805023, 4962733, 5610046, 9925466, 14025115, 24813665, 28050230, 49627330, 64515529, 129031058, 322577645, 645155290]

約数ペア:

[(1, 645155290), (2, 322577645), (5, 129031058), (10, 64515529), (13, 49627330), (23, 28050230), (26, 24813665), (46, 14025115), (65, 9925466), (115, 5610046), (130, 4962733), (230, 2805023), (299, 2157710), (598, 1078855), (1495, 431542), (2990, 215771)]