20354952320

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1673927}}^1$

素因数の和:1673965

約数の個数: 64

約数和(自身を含む): 51222196800

約数和(自身を除く): 30867244480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 1673927, 3347854, 6695708, 8369635, 13391416, 16739270, 26782832, 31804613, 33478540, 53565664, 63609226, 66957080, 107131328, 127218452, 133914160, 159023065, 214262656, 254436904, 267828320, 318046130, 508873808, 535656640, 636092260, 1017747616, 1071313280, 1272184520, 2035495232, 2544369040, 4070990464, 5088738080, 10177476160, 20354952320]

約数ペア:

[(1, 20354952320), (2, 10177476160), (4, 5088738080), (5, 4070990464), (8, 2544369040), (10, 2035495232), (16, 1272184520), (19, 1071313280), (20, 1017747616), (32, 636092260), (38, 535656640), (40, 508873808), (64, 318046130), (76, 267828320), (80, 254436904), (95, 214262656), (128, 159023065), (152, 133914160), (160, 127218452), (190, 107131328), (304, 66957080), (320, 63609226), (380, 53565664), (608, 33478540), (640, 31804613), (760, 26782832), (1216, 16739270), (1520, 13391416), (2432, 8369635), (3040, 6695708), (6080, 3347854), (12160, 1673927)]