20762534020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1381}}^1\times {\mathrm{1531}}^1$

素因数の和:3412

約数の個数: 48

約数和(自身を含む): 43750316736

約数和(自身を除く): 22987782716

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1381, 1531, 1964, 2455, 2762, 3062, 4910, 5524, 6124, 6905, 7655, 9820, 13810, 15310, 27620, 30620, 678071, 751721, 1356142, 1503442, 2114311, 2712284, 3006884, 3390355, 3758605, 4228622, 6780710, 7517210, 8457244, 10571555, 13561420, 15034420, 21143110, 42286220, 1038126701, 2076253402, 4152506804, 5190633505, 10381267010, 20762534020]

約数ペア:

[(1, 20762534020), (2, 10381267010), (4, 5190633505), (5, 4152506804), (10, 2076253402), (20, 1038126701), (491, 42286220), (982, 21143110), (1381, 15034420), (1531, 13561420), (1964, 10571555), (2455, 8457244), (2762, 7517210), (3062, 6780710), (4910, 4228622), (5524, 3758605), (6124, 3390355), (6905, 3006884), (7655, 2712284), (9820, 2114311), (13810, 1503442), (15310, 1356142), (27620, 751721), (30620, 678071)]