20338120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2719}}^1$

素因数の和:2758

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 32538680

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2719, 3740, 5438, 7480, 10876, 13595, 21752, 27190, 29909, 46223, 54380, 59818, 92446, 108760, 119636, 149545, 184892, 231115, 239272, 299090, 369784, 462230, 508453, 598180, 924460, 1016906, 1196360, 1848920, 2033812, 2542265, 4067624, 5084530, 10169060, 20338120]

約数ペア:

[(1, 20338120), (2, 10169060), (4, 5084530), (5, 4067624), (8, 2542265), (10, 2033812), (11, 1848920), (17, 1196360), (20, 1016906), (22, 924460), (34, 598180), (40, 508453), (44, 462230), (55, 369784), (68, 299090), (85, 239272), (88, 231115), (110, 184892), (136, 149545), (170, 119636), (187, 108760), (220, 92446), (340, 59818), (374, 54380), (440, 46223), (680, 29909), (748, 27190), (935, 21752), (1496, 13595), (1870, 10876), (2719, 7480), (3740, 5438)]