99638620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{81671}}^1$

素因数の和:81741

約数の個数: 24

約数和(自身を含む): 212673888

約数和(自身を除く): 113035268

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 81671, 163342, 326684, 408355, 816710, 1633420, 4981931, 9963862, 19927724, 24909655, 49819310, 99638620]

約数ペア:

[(1, 99638620), (2, 49819310), (4, 24909655), (5, 19927724), (10, 9963862), (20, 4981931), (61, 1633420), (122, 816710), (244, 408355), (305, 326684), (610, 163342), (1220, 81671)]