42117640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 99221760

約数和(自身を除く): 57104120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 521, 860, 940, 1042, 1720, 1880, 2021, 2084, 2605, 4042, 4168, 5210, 8084, 10105, 10420, 16168, 20210, 20840, 22403, 24487, 40420, 44806, 48974, 80840, 89612, 97948, 112015, 122435, 179224, 195896, 224030, 244870, 448060, 489740, 896120, 979480, 1052941, 2105882, 4211764, 5264705, 8423528, 10529410, 21058820, 42117640]

約数ペア:

[(1, 42117640), (2, 21058820), (4, 10529410), (5, 8423528), (8, 5264705), (10, 4211764), (20, 2105882), (40, 1052941), (43, 979480), (47, 896120), (86, 489740), (94, 448060), (172, 244870), (188, 224030), (215, 195896), (235, 179224), (344, 122435), (376, 112015), (430, 97948), (470, 89612), (521, 80840), (860, 48974), (940, 44806), (1042, 40420), (1720, 24487), (1880, 22403), (2021, 20840), (2084, 20210), (2605, 16168), (4042, 10420), (4168, 10105), (5210, 8084)]