78439600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10321}}^1$

素因数の和:10358

約数の個数: 60

約数和(自身を含む): 198388840

約数和(自身を除く): 119949240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 10321, 20642, 41284, 51605, 82568, 103210, 165136, 196099, 206420, 258025, 392198, 412840, 516050, 784396, 825680, 980495, 1032100, 1568792, 1960990, 2064200, 3137584, 3921980, 4128400, 4902475, 7843960, 9804950, 15687920, 19609900, 39219800, 78439600]

約数ペア:

[(1, 78439600), (2, 39219800), (4, 19609900), (5, 15687920), (8, 9804950), (10, 7843960), (16, 4902475), (19, 4128400), (20, 3921980), (25, 3137584), (38, 2064200), (40, 1960990), (50, 1568792), (76, 1032100), (80, 980495), (95, 825680), (100, 784396), (152, 516050), (190, 412840), (200, 392198), (304, 258025), (380, 206420), (400, 196099), (475, 165136), (760, 103210), (950, 82568), (1520, 51605), (1900, 41284), (3800, 20642), (7600, 10321)]