20407764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 53494560

約数和(自身を除く): 33086796

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 169, 174, 338, 347, 348, 377, 507, 676, 694, 754, 1014, 1041, 1131, 1388, 1508, 2028, 2082, 2262, 4164, 4511, 4524, 4901, 9022, 9802, 10063, 13533, 14703, 18044, 19604, 20126, 27066, 29406, 30189, 40252, 54132, 58643, 58812, 60378, 117286, 120756, 130819, 175929, 234572, 261638, 351858, 392457, 523276, 703716, 784914, 1569828, 1700647, 3401294, 5101941, 6802588, 10203882, 20407764]

約数ペア:

[(1, 20407764), (2, 10203882), (3, 6802588), (4, 5101941), (6, 3401294), (12, 1700647), (13, 1569828), (26, 784914), (29, 703716), (39, 523276), (52, 392457), (58, 351858), (78, 261638), (87, 234572), (116, 175929), (156, 130819), (169, 120756), (174, 117286), (338, 60378), (347, 58812), (348, 58643), (377, 54132), (507, 40252), (676, 30189), (694, 29406), (754, 27066), (1014, 20126), (1041, 19604), (1131, 18044), (1388, 14703), (1508, 13533), (2028, 10063), (2082, 9802), (2262, 9022), (4164, 4901), (4511, 4524)]