31553680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20759}}^1$

素因数の和:20791

約数の個数: 40

約数和(自身を含む): 77227200

約数和(自身を除く): 45673520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20759, 41518, 83036, 103795, 166072, 207590, 332144, 394421, 415180, 788842, 830360, 1577684, 1660720, 1972105, 3155368, 3944210, 6310736, 7888420, 15776840, 31553680]

約数ペア:

[(1, 31553680), (2, 15776840), (4, 7888420), (5, 6310736), (8, 3944210), (10, 3155368), (16, 1972105), (19, 1660720), (20, 1577684), (38, 830360), (40, 788842), (76, 415180), (80, 394421), (95, 332144), (152, 207590), (190, 166072), (304, 103795), (380, 83036), (760, 41518), (1520, 20759)]