18771080

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2879}}^1$

素因数の和:3053

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 23737720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2879, 3260, 5758, 6520, 11516, 14395, 23032, 28790, 57580, 115160, 469277, 938554, 1877108, 2346385, 3754216, 4692770, 9385540, 18771080]

約数ペア:

[(1, 18771080), (2, 9385540), (4, 4692770), (5, 3754216), (8, 2346385), (10, 1877108), (20, 938554), (40, 469277), (163, 115160), (326, 57580), (652, 28790), (815, 23032), (1304, 14395), (1630, 11516), (2879, 6520), (3260, 5758)]