20804300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18913}}^1$

素因数の和:18938

約数の個数: 36

約数和(自身を含む): 49252056

約数和(自身を除く): 28447756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18913, 37826, 75652, 94565, 189130, 208043, 378260, 416086, 472825, 832172, 945650, 1040215, 1891300, 2080430, 4160860, 5201075, 10402150, 20804300]

約数ペア:

[(1, 20804300), (2, 10402150), (4, 5201075), (5, 4160860), (10, 2080430), (11, 1891300), (20, 1040215), (22, 945650), (25, 832172), (44, 472825), (50, 416086), (55, 378260), (100, 208043), (110, 189130), (220, 94565), (275, 75652), (550, 37826), (1100, 18913)]