19835420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3109}}^1$

素因数の和:3158

約数の個数: 48

約数和(自身を含む): 47023200

約数和(自身を除く): 27187780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3109, 3190, 6218, 6380, 12436, 15545, 31090, 34199, 62180, 68398, 90161, 136796, 170995, 180322, 341990, 360644, 450805, 683980, 901610, 991771, 1803220, 1983542, 3967084, 4958855, 9917710, 19835420]

約数ペア:

[(1, 19835420), (2, 9917710), (4, 4958855), (5, 3967084), (10, 1983542), (11, 1803220), (20, 991771), (22, 901610), (29, 683980), (44, 450805), (55, 360644), (58, 341990), (110, 180322), (116, 170995), (145, 136796), (220, 90161), (290, 68398), (319, 62180), (580, 34199), (638, 31090), (1276, 15545), (1595, 12436), (3109, 6380), (3190, 6218)]