215364492020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{21931211}}^1$

素因数の和:21931711

約数の個数: 24

約数和(自身を含む): 453186564768

約数和(自身を除く): 237822072748

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 21931211, 43862422, 87724844, 109656055, 219312110, 438624220, 10768224601, 21536449202, 43072898404, 53841123005, 107682246010, 215364492020]

約数ペア:

[(1, 215364492020), (2, 107682246010), (4, 53841123005), (5, 43072898404), (10, 21536449202), (20, 10768224601), (491, 438624220), (982, 219312110), (1964, 109656055), (2455, 87724844), (4910, 43862422), (9820, 21931211)]