201666700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 453658464

約数和(自身を除く): 251991764

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 101, 164, 202, 205, 404, 410, 487, 505, 820, 974, 1010, 1025, 1948, 2020, 2050, 2435, 2525, 4100, 4141, 4870, 5050, 8282, 9740, 10100, 12175, 16564, 19967, 20705, 24350, 39934, 41410, 48700, 49187, 79868, 82820, 98374, 99835, 103525, 196748, 199670, 207050, 245935, 399340, 414100, 491870, 499175, 983740, 998350, 1229675, 1996700, 2016667, 2459350, 4033334, 4918700, 8066668, 10083335, 20166670, 40333340, 50416675, 100833350, 201666700]

約数ペア:

[(1, 201666700), (2, 100833350), (4, 50416675), (5, 40333340), (10, 20166670), (20, 10083335), (25, 8066668), (41, 4918700), (50, 4033334), (82, 2459350), (100, 2016667), (101, 1996700), (164, 1229675), (202, 998350), (205, 983740), (404, 499175), (410, 491870), (487, 414100), (505, 399340), (820, 245935), (974, 207050), (1010, 199670), (1025, 196748), (1948, 103525), (2020, 99835), (2050, 98374), (2435, 82820), (2525, 79868), (4100, 49187), (4141, 48700), (4870, 41410), (5050, 39934), (8282, 24350), (9740, 20705), (10100, 19967), (12175, 16564)]