31740940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20611}}^1$

素因数の和:20638

約数の個数: 48

約数和(自身を含む): 83107584

約数和(自身を除く): 51366644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20611, 41222, 82444, 103055, 144277, 206110, 226721, 288554, 412220, 453442, 577108, 721385, 906884, 1133605, 1442770, 1587047, 2267210, 2885540, 3174094, 4534420, 6348188, 7935235, 15870470, 31740940]

約数ペア:

[(1, 31740940), (2, 15870470), (4, 7935235), (5, 6348188), (7, 4534420), (10, 3174094), (11, 2885540), (14, 2267210), (20, 1587047), (22, 1442770), (28, 1133605), (35, 906884), (44, 721385), (55, 577108), (70, 453442), (77, 412220), (110, 288554), (140, 226721), (154, 206110), (220, 144277), (308, 103055), (385, 82444), (770, 41222), (1540, 20611)]