64981895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 88957440

約数和(自身を除く): 23975545

約数列:

[1, 5, 11, 29, 55, 131, 145, 311, 319, 655, 1441, 1555, 1595, 3421, 3799, 7205, 9019, 17105, 18995, 40741, 41789, 45095, 99209, 203705, 208945, 448151, 496045, 1181489, 2240755, 5907445, 12996379, 64981895]

約数ペア:

[(1, 64981895), (5, 12996379), (11, 5907445), (29, 2240755), (55, 1181489), (131, 496045), (145, 448151), (311, 208945), (319, 203705), (655, 99209), (1441, 45095), (1555, 41789), (1595, 40741), (3421, 18995), (3799, 17105), (7205, 9019)]