400430140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{337}}^1\times {\mathrm{491}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 928929456

約数和(自身を除く): 528499316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 337, 484, 491, 605, 674, 982, 1210, 1348, 1685, 1964, 2420, 2455, 3370, 3707, 4910, 5401, 6740, 7414, 9820, 10802, 14828, 18535, 21604, 27005, 37070, 40777, 54010, 59411, 74140, 81554, 108020, 118822, 163108, 165467, 203885, 237644, 297055, 330934, 407770, 594110, 661868, 815540, 827335, 1188220, 1654670, 1820137, 3309340, 3640274, 7280548, 9100685, 18201370, 20021507, 36402740, 40043014, 80086028, 100107535, 200215070, 400430140]

約数ペア:

[(1, 400430140), (2, 200215070), (4, 100107535), (5, 80086028), (10, 40043014), (11, 36402740), (20, 20021507), (22, 18201370), (44, 9100685), (55, 7280548), (110, 3640274), (121, 3309340), (220, 1820137), (242, 1654670), (337, 1188220), (484, 827335), (491, 815540), (605, 661868), (674, 594110), (982, 407770), (1210, 330934), (1348, 297055), (1685, 237644), (1964, 203885), (2420, 165467), (2455, 163108), (3370, 118822), (3707, 108020), (4910, 81554), (5401, 74140), (6740, 59411), (7414, 54010), (9820, 40777), (10802, 37070), (14828, 27005), (18535, 21604)]