215470420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22777}}^1$

素因数の和:22840

約数の個数: 48

約数和(自身を含む): 505124928

約数和(自身を除く): 289654508

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, 22777, 45554, 91108, 113885, 227770, 250547, 455540, 501094, 979411, 1002188, 1252735, 1958822, 2505470, 3917644, 4897055, 5010940, 9794110, 10773521, 19588220, 21547042, 43094084, 53867605, 107735210, 215470420]

約数ペア:

[(1, 215470420), (2, 107735210), (4, 53867605), (5, 43094084), (10, 21547042), (11, 19588220), (20, 10773521), (22, 9794110), (43, 5010940), (44, 4897055), (55, 3917644), (86, 2505470), (110, 1958822), (172, 1252735), (215, 1002188), (220, 979411), (430, 501094), (473, 455540), (860, 250547), (946, 227770), (1892, 113885), (2365, 91108), (4730, 45554), (9460, 22777)]