1520402440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1\times {\mathrm{2683}}^1$

素因数の和:3182

約数の個数: 64

約数和(自身を含む): 3540303360

約数和(自身を除く): 2019900920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 457, 620, 914, 1240, 1828, 2285, 2683, 3656, 4570, 5366, 9140, 10732, 13415, 14167, 18280, 21464, 26830, 28334, 53660, 56668, 70835, 83173, 107320, 113336, 141670, 166346, 283340, 332692, 415865, 566680, 665384, 831730, 1226131, 1663460, 2452262, 3326920, 4904524, 6130655, 9809048, 12261310, 24522620, 38010061, 49045240, 76020122, 152040244, 190050305, 304080488, 380100610, 760201220, 1520402440]

約数ペア:

[(1, 1520402440), (2, 760201220), (4, 380100610), (5, 304080488), (8, 190050305), (10, 152040244), (20, 76020122), (31, 49045240), (40, 38010061), (62, 24522620), (124, 12261310), (155, 9809048), (248, 6130655), (310, 4904524), (457, 3326920), (620, 2452262), (914, 1663460), (1240, 1226131), (1828, 831730), (2285, 665384), (2683, 566680), (3656, 415865), (4570, 332692), (5366, 283340), (9140, 166346), (10732, 141670), (13415, 113336), (14167, 107320), (18280, 83173), (21464, 70835), (26830, 56668), (28334, 53660)]