15994360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 37674720

約数和(自身を除く): 21680360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 101, 107, 148, 185, 202, 214, 296, 370, 404, 428, 505, 535, 740, 808, 856, 1010, 1070, 1480, 2020, 2140, 3737, 3959, 4040, 4280, 7474, 7918, 10807, 14948, 15836, 18685, 19795, 21614, 29896, 31672, 37370, 39590, 43228, 54035, 74740, 79180, 86456, 108070, 149480, 158360, 216140, 399859, 432280, 799718, 1599436, 1999295, 3198872, 3998590, 7997180, 15994360]

約数ペア:

[(1, 15994360), (2, 7997180), (4, 3998590), (5, 3198872), (8, 1999295), (10, 1599436), (20, 799718), (37, 432280), (40, 399859), (74, 216140), (101, 158360), (107, 149480), (148, 108070), (185, 86456), (202, 79180), (214, 74740), (296, 54035), (370, 43228), (404, 39590), (428, 37370), (505, 31672), (535, 29896), (740, 21614), (808, 19795), (856, 18685), (1010, 15836), (1070, 14948), (1480, 10807), (2020, 7918), (2140, 7474), (3737, 4280), (3959, 4040)]