89942840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{643}}^1$

素因数の和:936

約数の個数: 64

約数和(自身を含む): 219088800

約数和(自身を除く): 129145960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 269, 520, 538, 643, 1076, 1286, 1345, 2152, 2572, 2690, 3215, 3497, 5144, 5380, 6430, 6994, 8359, 10760, 12860, 13988, 16718, 17485, 25720, 27976, 33436, 34970, 41795, 66872, 69940, 83590, 139880, 167180, 172967, 334360, 345934, 691868, 864835, 1383736, 1729670, 2248571, 3459340, 4497142, 6918680, 8994284, 11242855, 17988568, 22485710, 44971420, 89942840]

約数ペア:

[(1, 89942840), (2, 44971420), (4, 22485710), (5, 17988568), (8, 11242855), (10, 8994284), (13, 6918680), (20, 4497142), (26, 3459340), (40, 2248571), (52, 1729670), (65, 1383736), (104, 864835), (130, 691868), (260, 345934), (269, 334360), (520, 172967), (538, 167180), (643, 139880), (1076, 83590), (1286, 69940), (1345, 66872), (2152, 41795), (2572, 34970), (2690, 33436), (3215, 27976), (3497, 25720), (5144, 17485), (5380, 16718), (6430, 13988), (6994, 12860), (8359, 10760)]