217872320

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4177}}^1$

素因数の和:4357

約数の個数: 56

約数和(自身を含む): 522116304

約数和(自身を除く): 304243984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 652, 815, 1304, 1630, 2608, 3260, 4177, 5216, 6520, 8354, 10432, 13040, 16708, 20885, 26080, 33416, 41770, 52160, 66832, 83540, 133664, 167080, 267328, 334160, 668320, 680851, 1336640, 1361702, 2723404, 3404255, 5446808, 6808510, 10893616, 13617020, 21787232, 27234040, 43574464, 54468080, 108936160, 217872320]

約数ペア:

[(1, 217872320), (2, 108936160), (4, 54468080), (5, 43574464), (8, 27234040), (10, 21787232), (16, 13617020), (20, 10893616), (32, 6808510), (40, 5446808), (64, 3404255), (80, 2723404), (160, 1361702), (163, 1336640), (320, 680851), (326, 668320), (652, 334160), (815, 267328), (1304, 167080), (1630, 133664), (2608, 83540), (3260, 66832), (4177, 52160), (5216, 41770), (6520, 33416), (8354, 26080), (10432, 20885), (13040, 16708)]