7780890

素因数分解:

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

素因数の和:375

約数の個数: 64

約数和(自身を含む): 20466432

約数和(自身を除く): 12685542

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 281, 355, 390, 426, 562, 710, 843, 923, 1065, 1405, 1686, 1846, 2130, 2769, 2810, 3653, 4215, 4615, 5538, 7306, 8430, 9230, 10959, 13845, 18265, 19951, 21918, 27690, 36530, 39902, 54795, 59853, 99755, 109590, 119706, 199510, 259363, 299265, 518726, 598530, 778089, 1296815, 1556178, 2593630, 3890445, 7780890]

約数ペア:

[(1, 7780890), (2, 3890445), (3, 2593630), (5, 1556178), (6, 1296815), (10, 778089), (13, 598530), (15, 518726), (26, 299265), (30, 259363), (39, 199510), (65, 119706), (71, 109590), (78, 99755), (130, 59853), (142, 54795), (195, 39902), (213, 36530), (281, 27690), (355, 21918), (390, 19951), (426, 18265), (562, 13845), (710, 10959), (843, 9230), (923, 8430), (1065, 7306), (1405, 5538), (1686, 4615), (1846, 4215), (2130, 3653), (2769, 2810)]