15901620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37861}}^1$

素因数の和:37880

約数の個数: 48

約数和(自身を含む): 50886528

約数和(自身を除く): 34984908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 37861, 75722, 113583, 151444, 189305, 227166, 265027, 378610, 454332, 530054, 567915, 757220, 795081, 1060108, 1135830, 1325135, 1590162, 2271660, 2650270, 3180324, 3975405, 5300540, 7950810, 15901620]

約数ペア:

[(1, 15901620), (2, 7950810), (3, 5300540), (4, 3975405), (5, 3180324), (6, 2650270), (7, 2271660), (10, 1590162), (12, 1325135), (14, 1135830), (15, 1060108), (20, 795081), (21, 757220), (28, 567915), (30, 530054), (35, 454332), (42, 378610), (60, 265027), (70, 227166), (84, 189305), (105, 151444), (140, 113583), (210, 75722), (420, 37861)]