40397920

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1549}}^1$

素因数の和:1727

約数の個数: 48

約数和(自身を含む): 96087600

約数和(自身を除く): 55689680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 815, 1304, 1549, 1630, 2608, 3098, 3260, 5216, 6196, 6520, 7745, 12392, 13040, 15490, 24784, 26080, 30980, 49568, 61960, 123920, 247840, 252487, 504974, 1009948, 1262435, 2019896, 2524870, 4039792, 5049740, 8079584, 10099480, 20198960, 40397920]

約数ペア:

[(1, 40397920), (2, 20198960), (4, 10099480), (5, 8079584), (8, 5049740), (10, 4039792), (16, 2524870), (20, 2019896), (32, 1262435), (40, 1009948), (80, 504974), (160, 252487), (163, 247840), (326, 123920), (652, 61960), (815, 49568), (1304, 30980), (1549, 26080), (1630, 24784), (2608, 15490), (3098, 13040), (3260, 12392), (5216, 7745), (6196, 6520)]