427240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 1049760

約数和(自身を除く): 622520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 971, 1942, 3884, 4855, 7768, 9710, 10681, 19420, 21362, 38840, 42724, 53405, 85448, 106810, 213620, 427240]

約数ペア:

[(1, 427240), (2, 213620), (4, 106810), (5, 85448), (8, 53405), (10, 42724), (11, 38840), (20, 21362), (22, 19420), (40, 10681), (44, 9710), (55, 7768), (88, 4855), (110, 3884), (220, 1942), (440, 971)]