31123560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 102332160

約数和(自身を除く): 71208600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 195, 213, 260, 281, 284, 312, 355, 390, 426, 520, 562, 568, 710, 780, 843, 852, 923, 1065, 1124, 1405, 1420, 1560, 1686, 1704, 1846, 2130, 2248, 2769, 2810, 2840, 3372, 3653, 3692, 4215, 4260, 4615, 5538, 5620, 6744, 7306, 7384, 8430, 8520, 9230, 10959, 11076, 11240, 13845, 14612, 16860, 18265, 18460, 19951, 21918, 22152, 27690, 29224, 33720, 36530, 36920, 39902, 43836, 54795, 55380, 59853, 73060, 79804, 87672, 99755, 109590, 110760, 119706, 146120, 159608, 199510, 219180, 239412, 259363, 299265, 399020, 438360, 478824, 518726, 598530, 778089, 798040, 1037452, 1197060, 1296815, 1556178, 2074904, 2394120, 2593630, 3112356, 3890445, 5187260, 6224712, 7780890, 10374520, 15561780, 31123560]

約数ペア:

[(1, 31123560), (2, 15561780), (3, 10374520), (4, 7780890), (5, 6224712), (6, 5187260), (8, 3890445), (10, 3112356), (12, 2593630), (13, 2394120), (15, 2074904), (20, 1556178), (24, 1296815), (26, 1197060), (30, 1037452), (39, 798040), (40, 778089), (52, 598530), (60, 518726), (65, 478824), (71, 438360), (78, 399020), (104, 299265), (120, 259363), (130, 239412), (142, 219180), (156, 199510), (195, 159608), (213, 146120), (260, 119706), (281, 110760), (284, 109590), (312, 99755), (355, 87672), (390, 79804), (426, 73060), (520, 59853), (562, 55380), (568, 54795), (710, 43836), (780, 39902), (843, 36920), (852, 36530), (923, 33720), (1065, 29224), (1124, 27690), (1405, 22152), (1420, 21918), (1560, 19951), (1686, 18460), (1704, 18265), (1846, 16860), (2130, 14612), (2248, 13845), (2769, 11240), (2810, 11076), (2840, 10959), (3372, 9230), (3653, 8520), (3692, 8430), (4215, 7384), (4260, 7306), (4615, 6744), (5538, 5620)]