397954720

素因数分解:

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

素因数の和:15437

約数の個数: 48

約数和(自身を含む): 945997920

約数和(自身を除く): 548043200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 5216, 6520, 13040, 15259, 26080, 30518, 61036, 76295, 122072, 152590, 244144, 305180, 488288, 610360, 1220720, 2441440, 2487217, 4974434, 9948868, 12436085, 19897736, 24872170, 39795472, 49744340, 79590944, 99488680, 198977360, 397954720]

約数ペア:

[(1, 397954720), (2, 198977360), (4, 99488680), (5, 79590944), (8, 49744340), (10, 39795472), (16, 24872170), (20, 19897736), (32, 12436085), (40, 9948868), (80, 4974434), (160, 2487217), (163, 2441440), (326, 1220720), (652, 610360), (815, 488288), (1304, 305180), (1630, 244144), (2608, 152590), (3260, 122072), (5216, 76295), (6520, 61036), (13040, 30518), (15259, 26080)]