77666300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 181915440

約数和(自身を除く): 104249140

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 779, 820, 950, 997, 1025, 1558, 1900, 1994, 2050, 3116, 3895, 3988, 4100, 4985, 7790, 9970, 15580, 18943, 19475, 19940, 24925, 37886, 38950, 40877, 49850, 75772, 77900, 81754, 94715, 99700, 163508, 189430, 204385, 378860, 408770, 473575, 776663, 817540, 947150, 1021925, 1553326, 1894300, 2043850, 3106652, 3883315, 4087700, 7766630, 15533260, 19416575, 38833150, 77666300]

約数ペア:

[(1, 77666300), (2, 38833150), (4, 19416575), (5, 15533260), (10, 7766630), (19, 4087700), (20, 3883315), (25, 3106652), (38, 2043850), (41, 1894300), (50, 1553326), (76, 1021925), (82, 947150), (95, 817540), (100, 776663), (164, 473575), (190, 408770), (205, 378860), (380, 204385), (410, 189430), (475, 163508), (779, 99700), (820, 94715), (950, 81754), (997, 77900), (1025, 75772), (1558, 49850), (1900, 40877), (1994, 38950), (2050, 37886), (3116, 24925), (3895, 19940), (3988, 19475), (4100, 18943), (4985, 15580), (7790, 9970)]