64204820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{409}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 138862080

約数和(自身を除く): 74657260

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 167, 188, 235, 334, 409, 470, 668, 818, 835, 940, 1636, 1670, 2045, 3340, 4090, 7849, 8180, 15698, 19223, 31396, 38446, 39245, 68303, 76892, 78490, 96115, 136606, 156980, 192230, 273212, 341515, 384460, 683030, 1366060, 3210241, 6420482, 12840964, 16051205, 32102410, 64204820]

約数ペア:

[(1, 64204820), (2, 32102410), (4, 16051205), (5, 12840964), (10, 6420482), (20, 3210241), (47, 1366060), (94, 683030), (167, 384460), (188, 341515), (235, 273212), (334, 192230), (409, 156980), (470, 136606), (668, 96115), (818, 78490), (835, 76892), (940, 68303), (1636, 39245), (1670, 38446), (2045, 31396), (3340, 19223), (4090, 15698), (7849, 8180)]