81371444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{757}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 178281600

約数和(自身を除く): 96910156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 349, 698, 757, 1396, 1514, 2443, 3028, 3839, 4886, 5299, 7678, 8327, 9772, 10598, 15356, 16654, 21196, 26873, 33308, 53746, 58289, 107492, 116578, 233156, 264193, 528386, 1056772, 1849351, 2906123, 3698702, 5812246, 7397404, 11624492, 20342861, 40685722, 81371444]

約数ペア:

[(1, 81371444), (2, 40685722), (4, 20342861), (7, 11624492), (11, 7397404), (14, 5812246), (22, 3698702), (28, 2906123), (44, 1849351), (77, 1056772), (154, 528386), (308, 264193), (349, 233156), (698, 116578), (757, 107492), (1396, 58289), (1514, 53746), (2443, 33308), (3028, 26873), (3839, 21196), (4886, 16654), (5299, 15356), (7678, 10598), (8327, 9772)]