78819460

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2797}}^1$

素因数の和:4215

約数の個数: 24

約数和(自身を含む): 165697560

約数和(自身を除く): 86878100

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2797, 2818, 5594, 5636, 7045, 11188, 13985, 14090, 27970, 28180, 55940, 3940973, 7881946, 15763892, 19704865, 39409730, 78819460]

約数ペア:

[(1, 78819460), (2, 39409730), (4, 19704865), (5, 15763892), (10, 7881946), (20, 3940973), (1409, 55940), (2797, 28180), (2818, 27970), (5594, 14090), (5636, 13985), (7045, 11188)]