18274640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7877}}^1$

素因数の和:7919

約数の個数: 40

約数和(自身を含む): 43959240

約数和(自身を除く): 25684600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 7877, 15754, 31508, 39385, 63016, 78770, 126032, 157540, 228433, 315080, 456866, 630160, 913732, 1142165, 1827464, 2284330, 3654928, 4568660, 9137320, 18274640]

約数ペア:

[(1, 18274640), (2, 9137320), (4, 4568660), (5, 3654928), (8, 2284330), (10, 1827464), (16, 1142165), (20, 913732), (29, 630160), (40, 456866), (58, 315080), (80, 228433), (116, 157540), (145, 126032), (232, 78770), (290, 63016), (464, 39385), (580, 31508), (1160, 15754), (2320, 7877)]