18785819680

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{924499}}^1$

素因数の和:924641

約数の個数: 48

約数和(自身を含む): 44731008000

約数和(自身を除く): 25945188320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 20320, 924499, 1848998, 3697996, 4622495, 7395992, 9244990, 14791984, 18489980, 29583968, 36979960, 73959920, 117411373, 147919840, 234822746, 469645492, 587056865, 939290984, 1174113730, 1878581968, 2348227460, 3757163936, 4696454920, 9392909840, 18785819680]

約数ペア:

[(1, 18785819680), (2, 9392909840), (4, 4696454920), (5, 3757163936), (8, 2348227460), (10, 1878581968), (16, 1174113730), (20, 939290984), (32, 587056865), (40, 469645492), (80, 234822746), (127, 147919840), (160, 117411373), (254, 73959920), (508, 36979960), (635, 29583968), (1016, 18489980), (1270, 14791984), (2032, 9244990), (2540, 7395992), (4064, 4622495), (5080, 3697996), (10160, 1848998), (20320, 924499)]