64374964

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:560

約数の個数: 36

約数和(自身を含む): 120281700

約数和(自身を除く): 55906736

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 361, 409, 436, 722, 818, 1444, 1636, 2071, 4142, 7771, 8284, 15542, 31084, 39349, 44581, 78698, 89162, 147649, 157396, 178324, 295298, 590596, 847039, 1694078, 3388156, 16093741, 32187482, 64374964]

約数ペア:

[(1, 64374964), (2, 32187482), (4, 16093741), (19, 3388156), (38, 1694078), (76, 847039), (109, 590596), (218, 295298), (361, 178324), (409, 157396), (436, 147649), (722, 89162), (818, 78698), (1444, 44581), (1636, 39349), (2071, 31084), (4142, 15542), (7771, 8284)]