20281910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3923}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 40684032

約数和(自身を除く): 20402122

約数列:

[1, 2, 5, 10, 11, 22, 47, 55, 94, 110, 235, 470, 517, 1034, 2585, 3923, 5170, 7846, 19615, 39230, 43153, 86306, 184381, 215765, 368762, 431530, 921905, 1843810, 2028191, 4056382, 10140955, 20281910]

約数ペア:

[(1, 20281910), (2, 10140955), (5, 4056382), (10, 2028191), (11, 1843810), (22, 921905), (47, 431530), (55, 368762), (94, 215765), (110, 184381), (235, 86306), (470, 43153), (517, 39230), (1034, 19615), (2585, 7846), (3923, 5170)]