40981648

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{18427}}^1$

素因数の和:18574

約数の個数: 20

約数和(自身を含む): 79977520

約数和(自身を除く): 38995872

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 18427, 36854, 73708, 147416, 294832, 2561353, 5122706, 10245412, 20490824, 40981648]

約数ペア:

[(1, 40981648), (2, 20490824), (4, 10245412), (8, 5122706), (16, 2561353), (139, 294832), (278, 147416), (556, 73708), (1112, 36854), (2224, 18427)]