15978976

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:635

約数の個数: 48

約数和(自身を含む): 34419168

約数和(自身を除く): 18440192

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 541, 568, 923, 1082, 1136, 1846, 2164, 2272, 3692, 4328, 7033, 7384, 8656, 14066, 14768, 17312, 28132, 29536, 38411, 56264, 76822, 112528, 153644, 225056, 307288, 499343, 614576, 998686, 1229152, 1997372, 3994744, 7989488, 15978976]

約数ペア:

[(1, 15978976), (2, 7989488), (4, 3994744), (8, 1997372), (13, 1229152), (16, 998686), (26, 614576), (32, 499343), (52, 307288), (71, 225056), (104, 153644), (142, 112528), (208, 76822), (284, 56264), (416, 38411), (541, 29536), (568, 28132), (923, 17312), (1082, 14768), (1136, 14066), (1846, 8656), (2164, 7384), (2272, 7033), (3692, 4328)]