15561780

素因数分解:

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

素因数の和:377

約数の個数: 96

約数和(自身を含む): 47755008

約数和(自身を除く): 32193228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 71, 78, 130, 142, 156, 195, 213, 260, 281, 284, 355, 390, 426, 562, 710, 780, 843, 852, 923, 1065, 1124, 1405, 1420, 1686, 1846, 2130, 2769, 2810, 3372, 3653, 3692, 4215, 4260, 4615, 5538, 5620, 7306, 8430, 9230, 10959, 11076, 13845, 14612, 16860, 18265, 18460, 19951, 21918, 27690, 36530, 39902, 43836, 54795, 55380, 59853, 73060, 79804, 99755, 109590, 119706, 199510, 219180, 239412, 259363, 299265, 399020, 518726, 598530, 778089, 1037452, 1197060, 1296815, 1556178, 2593630, 3112356, 3890445, 5187260, 7780890, 15561780]

約数ペア:

[(1, 15561780), (2, 7780890), (3, 5187260), (4, 3890445), (5, 3112356), (6, 2593630), (10, 1556178), (12, 1296815), (13, 1197060), (15, 1037452), (20, 778089), (26, 598530), (30, 518726), (39, 399020), (52, 299265), (60, 259363), (65, 239412), (71, 219180), (78, 199510), (130, 119706), (142, 109590), (156, 99755), (195, 79804), (213, 73060), (260, 59853), (281, 55380), (284, 54795), (355, 43836), (390, 39902), (426, 36530), (562, 27690), (710, 21918), (780, 19951), (843, 18460), (852, 18265), (923, 16860), (1065, 14612), (1124, 13845), (1405, 11076), (1420, 10959), (1686, 9230), (1846, 8430), (2130, 7306), (2769, 5620), (2810, 5538), (3372, 4615), (3653, 4260), (3692, 4215)]