31121240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{40949}}^1$

素因数の和:40979

約数の個数: 32

約数和(自身を含む): 73710000

約数和(自身を除く): 42588760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 40949, 81898, 163796, 204745, 327592, 409490, 778031, 818980, 1556062, 1637960, 3112124, 3890155, 6224248, 7780310, 15560620, 31121240]

約数ペア:

[(1, 31121240), (2, 15560620), (4, 7780310), (5, 6224248), (8, 3890155), (10, 3112124), (19, 1637960), (20, 1556062), (38, 818980), (40, 778031), (76, 409490), (95, 327592), (152, 204745), (190, 163796), (380, 81898), (760, 40949)]