64636220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3719}}^1$

素因数の和:3818

約数の個数: 48

約数和(自身を含む): 149990400

約数和(自身を除く): 85354180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 3719, 4345, 7438, 8690, 14876, 17380, 18595, 37190, 40909, 74380, 81818, 163636, 204545, 293801, 409090, 587602, 818180, 1175204, 1469005, 2938010, 3231811, 5876020, 6463622, 12927244, 16159055, 32318110, 64636220]

約数ペア:

[(1, 64636220), (2, 32318110), (4, 16159055), (5, 12927244), (10, 6463622), (11, 5876020), (20, 3231811), (22, 2938010), (44, 1469005), (55, 1175204), (79, 818180), (110, 587602), (158, 409090), (220, 293801), (316, 204545), (395, 163636), (790, 81818), (869, 74380), (1580, 40909), (1738, 37190), (3476, 18595), (3719, 17380), (4345, 14876), (7438, 8690)]