25324520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 63383040

約数和(自身を除く): 38058520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1571, 1612, 2015, 3142, 3224, 4030, 6284, 7855, 8060, 12568, 15710, 16120, 20423, 31420, 40846, 48701, 62840, 81692, 97402, 102115, 163384, 194804, 204230, 243505, 389608, 408460, 487010, 633113, 816920, 974020, 1266226, 1948040, 2532452, 3165565, 5064904, 6331130, 12662260, 25324520]

約数ペア:

[(1, 25324520), (2, 12662260), (4, 6331130), (5, 5064904), (8, 3165565), (10, 2532452), (13, 1948040), (20, 1266226), (26, 974020), (31, 816920), (40, 633113), (52, 487010), (62, 408460), (65, 389608), (104, 243505), (124, 204230), (130, 194804), (155, 163384), (248, 102115), (260, 97402), (310, 81692), (403, 62840), (520, 48701), (620, 40846), (806, 31420), (1240, 20423), (1571, 16120), (1612, 15710), (2015, 12568), (3142, 8060), (3224, 7855), (4030, 6284)]