278344720

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25031}}^1$

素因数の和:25183

約数の個数: 40

約数和(自身を含む): 651833280

約数和(自身を除く): 373488560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 25031, 50062, 100124, 125155, 200248, 250310, 400496, 500620, 1001240, 2002480, 3479309, 6958618, 13917236, 17396545, 27834472, 34793090, 55668944, 69586180, 139172360, 278344720]

約数ペア:

[(1, 278344720), (2, 139172360), (4, 69586180), (5, 55668944), (8, 34793090), (10, 27834472), (16, 17396545), (20, 13917236), (40, 6958618), (80, 3479309), (139, 2002480), (278, 1001240), (556, 500620), (695, 400496), (1112, 250310), (1390, 200248), (2224, 125155), (2780, 100124), (5560, 50062), (11120, 25031)]