198977360

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{15259}}^1$

素因数の和:15435

約数の個数: 40

約数和(自身を含む): 465491040

約数和(自身を除く): 266513680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 15259, 30518, 61036, 76295, 122072, 152590, 244144, 305180, 610360, 1220720, 2487217, 4974434, 9948868, 12436085, 19897736, 24872170, 39795472, 49744340, 99488680, 198977360]

約数ペア:

[(1, 198977360), (2, 99488680), (4, 49744340), (5, 39795472), (8, 24872170), (10, 19897736), (16, 12436085), (20, 9948868), (40, 4974434), (80, 2487217), (163, 1220720), (326, 610360), (652, 305180), (815, 244144), (1304, 152590), (1630, 122072), (2608, 76295), (3260, 61036), (6520, 30518), (13040, 15259)]