210740420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22277}}^1$

素因数の和:22340

約数の個数: 48

約数和(自身を含む): 494036928

約数和(自身を除く): 283296508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 22277, 44554, 89108, 111385, 222770, 245047, 445540, 490094, 957911, 980188, 1225235, 1915822, 2450470, 3831644, 4789555, 4900940, 9579110, 10537021, 19158220, 21074042, 42148084, 52685105, 105370210, 210740420]

約数ペア:

[(1, 210740420), (2, 105370210), (4, 52685105), (5, 42148084), (10, 21074042), (11, 19158220), (20, 10537021), (22, 9579110), (43, 4900940), (44, 4789555), (55, 3831644), (86, 2450470), (110, 1915822), (172, 1225235), (215, 980188), (220, 957911), (430, 490094), (473, 445540), (860, 245047), (946, 222770), (1892, 111385), (2365, 89108), (4730, 44554), (9460, 22277)]