20178678

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4241}}^1$

素因数の和:4320

約数の個数: 32

約数和(自身を含む): 44184672

約数和(自身を除く): 24005994

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 4241, 4758, 8482, 12723, 25446, 55133, 110266, 165399, 258701, 330798, 517402, 776103, 1552206, 3363113, 6726226, 10089339, 20178678]

約数ペア:

[(1, 20178678), (2, 10089339), (3, 6726226), (6, 3363113), (13, 1552206), (26, 776103), (39, 517402), (61, 330798), (78, 258701), (122, 165399), (183, 110266), (366, 55133), (793, 25446), (1586, 12723), (2379, 8482), (4241, 4758)]