18733640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4547}}^1$

素因数の和:4661

約数の個数: 32

約数和(自身を含む): 42569280

約数和(自身を除く): 23835640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4547, 9094, 18188, 22735, 36376, 45470, 90940, 181880, 468341, 936682, 1873364, 2341705, 3746728, 4683410, 9366820, 18733640]

約数ペア:

[(1, 18733640), (2, 9366820), (4, 4683410), (5, 3746728), (8, 2341705), (10, 1873364), (20, 936682), (40, 468341), (103, 181880), (206, 90940), (412, 45470), (515, 36376), (824, 22735), (1030, 18188), (2060, 9094), (4120, 4547)]