18949190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2053}}^1$

素因数の和:2144

約数の個数: 32

約数和(自身を含む): 37267776

約数和(自身を除く): 18318586

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 2053, 4106, 4615, 9230, 10265, 20530, 26689, 53378, 133445, 145763, 266890, 291526, 728815, 1457630, 1894919, 3789838, 9474595, 18949190]

約数ペア:

[(1, 18949190), (2, 9474595), (5, 3789838), (10, 1894919), (13, 1457630), (26, 728815), (65, 291526), (71, 266890), (130, 145763), (142, 133445), (355, 53378), (710, 26689), (923, 20530), (1846, 10265), (2053, 9230), (4106, 4615)]