20195084

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 43982400

約数和(自身を除く): 23787316

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 182, 218, 364, 436, 509, 763, 1018, 1417, 1526, 2036, 2834, 3052, 3563, 5668, 6617, 7126, 9919, 13234, 14252, 19838, 26468, 39676, 46319, 55481, 92638, 110962, 185276, 221924, 388367, 721253, 776734, 1442506, 1553468, 2885012, 5048771, 10097542, 20195084]

約数ペア:

[(1, 20195084), (2, 10097542), (4, 5048771), (7, 2885012), (13, 1553468), (14, 1442506), (26, 776734), (28, 721253), (52, 388367), (91, 221924), (109, 185276), (182, 110962), (218, 92638), (364, 55481), (436, 46319), (509, 39676), (763, 26468), (1018, 19838), (1417, 14252), (1526, 13234), (2036, 9919), (2834, 7126), (3052, 6617), (3563, 5668)]