20774440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17909}}^1$

素因数の和:17949

約数の個数: 32

約数和(自身を含む): 48357000

約数和(自身を除く): 27582560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17909, 35818, 71636, 89545, 143272, 179090, 358180, 519361, 716360, 1038722, 2077444, 2596805, 4154888, 5193610, 10387220, 20774440]

約数ペア:

[(1, 20774440), (2, 10387220), (4, 5193610), (5, 4154888), (8, 2596805), (10, 2077444), (20, 1038722), (29, 716360), (40, 519361), (58, 358180), (116, 179090), (145, 143272), (232, 89545), (290, 71636), (580, 35818), (1160, 17909)]