831678440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{5021}}^1$

素因数の和:5174

約数の個数: 64

約数和(自身を含む): 1936282320

約数和(自身を除く): 1104603880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 101, 164, 202, 205, 328, 404, 410, 505, 808, 820, 1010, 1640, 2020, 4040, 4141, 5021, 8282, 10042, 16564, 20084, 20705, 25105, 33128, 40168, 41410, 50210, 82820, 100420, 165640, 200840, 205861, 411722, 507121, 823444, 1014242, 1029305, 1646888, 2028484, 2058610, 2535605, 4056968, 4117220, 5071210, 8234440, 10142420, 20284840, 20791961, 41583922, 83167844, 103959805, 166335688, 207919610, 415839220, 831678440]

約数ペア:

[(1, 831678440), (2, 415839220), (4, 207919610), (5, 166335688), (8, 103959805), (10, 83167844), (20, 41583922), (40, 20791961), (41, 20284840), (82, 10142420), (101, 8234440), (164, 5071210), (202, 4117220), (205, 4056968), (328, 2535605), (404, 2058610), (410, 2028484), (505, 1646888), (808, 1029305), (820, 1014242), (1010, 823444), (1640, 507121), (2020, 411722), (4040, 205861), (4141, 200840), (5021, 165640), (8282, 100420), (10042, 82820), (16564, 50210), (20084, 41410), (20705, 40168), (25105, 33128)]