39781480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 92897280

約数和(自身を除く): 53115800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 191, 205, 254, 328, 382, 410, 508, 635, 764, 820, 955, 1016, 1270, 1528, 1640, 1910, 2540, 3820, 5080, 5207, 7640, 7831, 10414, 15662, 20828, 24257, 26035, 31324, 39155, 41656, 48514, 52070, 62648, 78310, 97028, 104140, 121285, 156620, 194056, 208280, 242570, 313240, 485140, 970280, 994537, 1989074, 3978148, 4972685, 7956296, 9945370, 19890740, 39781480]

約数ペア:

[(1, 39781480), (2, 19890740), (4, 9945370), (5, 7956296), (8, 4972685), (10, 3978148), (20, 1989074), (40, 994537), (41, 970280), (82, 485140), (127, 313240), (164, 242570), (191, 208280), (205, 194056), (254, 156620), (328, 121285), (382, 104140), (410, 97028), (508, 78310), (635, 62648), (764, 52070), (820, 48514), (955, 41656), (1016, 39155), (1270, 31324), (1528, 26035), (1640, 24257), (1910, 20828), (2540, 15662), (3820, 10414), (5080, 7831), (5207, 7640)]