64109705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 91238400

約数和(自身を除く): 27128695

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 589, 1045, 1705, 1979, 2945, 6479, 9895, 21769, 32395, 37601, 61349, 108845, 188005, 306745, 413611, 674839, 1165631, 2068055, 3374195, 5828155, 12821941, 64109705]

約数ペア:

[(1, 64109705), (5, 12821941), (11, 5828155), (19, 3374195), (31, 2068055), (55, 1165631), (95, 674839), (155, 413611), (209, 306745), (341, 188005), (589, 108845), (1045, 61349), (1705, 37601), (1979, 32395), (2945, 21769), (6479, 9895)]