4178480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2781

約数の個数: 40

約数和(自身を含む): 10230000

約数和(自身を除く): 6051520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2749, 5498, 10996, 13745, 21992, 27490, 43984, 52231, 54980, 104462, 109960, 208924, 219920, 261155, 417848, 522310, 835696, 1044620, 2089240, 4178480]

約数ペア:

[(1, 4178480), (2, 2089240), (4, 1044620), (5, 835696), (8, 522310), (10, 417848), (16, 261155), (19, 219920), (20, 208924), (38, 109960), (40, 104462), (76, 54980), (80, 52231), (95, 43984), (152, 27490), (190, 21992), (304, 13745), (380, 10996), (760, 5498), (1520, 2749)]