65891080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^2$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 152986860

約数和(自身を除く): 87095780

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 211, 296, 370, 422, 740, 844, 1055, 1480, 1688, 2110, 4220, 7807, 8440, 15614, 31228, 39035, 44521, 62456, 78070, 89042, 156140, 178084, 222605, 312280, 356168, 445210, 890420, 1647277, 1780840, 3294554, 6589108, 8236385, 13178216, 16472770, 32945540, 65891080]

約数ペア:

[(1, 65891080), (2, 32945540), (4, 16472770), (5, 13178216), (8, 8236385), (10, 6589108), (20, 3294554), (37, 1780840), (40, 1647277), (74, 890420), (148, 445210), (185, 356168), (211, 312280), (296, 222605), (370, 178084), (422, 156140), (740, 89042), (844, 78070), (1055, 62456), (1480, 44521), (1688, 39035), (2110, 31228), (4220, 15614), (7807, 8440)]