64990420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{295411}}^1$

素因数の和:295431

約数の個数: 24

約数和(自身を含む): 148887648

約数和(自身を除く): 83897228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 295411, 590822, 1181644, 1477055, 2954110, 3249521, 5908220, 6499042, 12998084, 16247605, 32495210, 64990420]

約数ペア:

[(1, 64990420), (2, 32495210), (4, 16247605), (5, 12998084), (10, 6499042), (11, 5908220), (20, 3249521), (22, 2954110), (44, 1477055), (55, 1181644), (110, 590822), (220, 295411)]