20203688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2179}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 40548000

約数和(自身を除く): 20344312

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2179, 2318, 4358, 4636, 8716, 9272, 17432, 41401, 82802, 132919, 165604, 265838, 331208, 531676, 1063352, 2525461, 5050922, 10101844, 20203688]

約数ペア:

[(1, 20203688), (2, 10101844), (4, 5050922), (8, 2525461), (19, 1063352), (38, 531676), (61, 331208), (76, 265838), (122, 165604), (152, 132919), (244, 82802), (488, 41401), (1159, 17432), (2179, 9272), (2318, 8716), (4358, 4636)]