538134640

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{21491}}^1$

素因数の和:21817

約数の個数: 40

約数和(自身を含む): 1255218768

約数和(自身を除く): 717084128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 5008, 6260, 12520, 21491, 25040, 42982, 85964, 107455, 171928, 214910, 343856, 429820, 859640, 1719280, 6726683, 13453366, 26906732, 33633415, 53813464, 67266830, 107626928, 134533660, 269067320, 538134640]

約数ペア:

[(1, 538134640), (2, 269067320), (4, 134533660), (5, 107626928), (8, 67266830), (10, 53813464), (16, 33633415), (20, 26906732), (40, 13453366), (80, 6726683), (313, 1719280), (626, 859640), (1252, 429820), (1565, 343856), (2504, 214910), (3130, 171928), (5008, 107455), (6260, 85964), (12520, 42982), (21491, 25040)]