20409136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1901}}^1$

素因数の和:1981

約数の個数: 40

約数和(自身を含む): 43867728

約数和(自身を除く): 23458592

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1901, 2684, 3802, 5368, 7604, 10736, 15208, 20911, 30416, 41822, 83644, 115961, 167288, 231922, 334576, 463844, 927688, 1275571, 1855376, 2551142, 5102284, 10204568, 20409136]

約数ペア:

[(1, 20409136), (2, 10204568), (4, 5102284), (8, 2551142), (11, 1855376), (16, 1275571), (22, 927688), (44, 463844), (61, 334576), (88, 231922), (122, 167288), (176, 115961), (244, 83644), (488, 41822), (671, 30416), (976, 20911), (1342, 15208), (1901, 10736), (2684, 7604), (3802, 5368)]