71487790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1637}}^1$

素因数の和:2052

約数の個数: 32

約数和(自身を含む): 140815584

約数和(自身を除く): 69327794

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 397, 794, 1637, 1985, 3274, 3970, 4367, 8185, 8734, 16370, 18007, 21835, 36014, 43670, 90035, 180070, 649889, 1299778, 3249445, 6498890, 7148779, 14297558, 35743895, 71487790]

約数ペア:

[(1, 71487790), (2, 35743895), (5, 14297558), (10, 7148779), (11, 6498890), (22, 3249445), (55, 1299778), (110, 649889), (397, 180070), (794, 90035), (1637, 43670), (1985, 36014), (3274, 21835), (3970, 18007), (4367, 16370), (8185, 8734)]