15940100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 38726688

約数和(自身を除く): 22786588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 337, 430, 473, 550, 674, 860, 946, 1075, 1100, 1348, 1685, 1892, 2150, 2365, 3370, 3707, 4300, 4730, 6740, 7414, 8425, 9460, 11825, 14491, 14828, 16850, 18535, 23650, 28982, 33700, 37070, 47300, 57964, 72455, 74140, 92675, 144910, 159401, 185350, 289820, 318802, 362275, 370700, 637604, 724550, 797005, 1449100, 1594010, 3188020, 3985025, 7970050, 15940100]

約数ペア:

[(1, 15940100), (2, 7970050), (4, 3985025), (5, 3188020), (10, 1594010), (11, 1449100), (20, 797005), (22, 724550), (25, 637604), (43, 370700), (44, 362275), (50, 318802), (55, 289820), (86, 185350), (100, 159401), (110, 144910), (172, 92675), (215, 74140), (220, 72455), (275, 57964), (337, 47300), (430, 37070), (473, 33700), (550, 28982), (674, 23650), (860, 18535), (946, 16850), (1075, 14828), (1100, 14491), (1348, 11825), (1685, 9460), (1892, 8425), (2150, 7414), (2365, 6740), (3370, 4730), (3707, 4300)]