664279420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{279109}}^1$

素因数の和:279142

約数の個数: 48

約数和(自身を含む): 1688057280

約数和(自身を除く): 1023777860

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 279109, 558218, 1116436, 1395545, 1953763, 2791090, 3907526, 4744853, 5582180, 7815052, 9489706, 9768815, 18979412, 19537630, 23724265, 33213971, 39075260, 47448530, 66427942, 94897060, 132855884, 166069855, 332139710, 664279420]

約数ペア:

[(1, 664279420), (2, 332139710), (4, 166069855), (5, 132855884), (7, 94897060), (10, 66427942), (14, 47448530), (17, 39075260), (20, 33213971), (28, 23724265), (34, 19537630), (35, 18979412), (68, 9768815), (70, 9489706), (85, 7815052), (119, 5582180), (140, 4744853), (170, 3907526), (238, 2791090), (340, 1953763), (476, 1395545), (595, 1116436), (1190, 558218), (2380, 279109)]