28111880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41341}}^1$

素因数の和:41369

約数の個数: 32

約数和(自身を含む): 66974040

約数和(自身を除く): 38862160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41341, 82682, 165364, 206705, 330728, 413410, 702797, 826820, 1405594, 1653640, 2811188, 3513985, 5622376, 7027970, 14055940, 28111880]

約数ペア:

[(1, 28111880), (2, 14055940), (4, 7027970), (5, 5622376), (8, 3513985), (10, 2811188), (17, 1653640), (20, 1405594), (34, 826820), (40, 702797), (68, 413410), (85, 330728), (136, 206705), (170, 165364), (340, 82682), (680, 41341)]