42489520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3821}}^1$

素因数の和:3973

約数の個数: 40

約数和(自身を含む): 99524880

約数和(自身を除く): 57035360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 3821, 5560, 7642, 11120, 15284, 19105, 30568, 38210, 61136, 76420, 152840, 305680, 531119, 1062238, 2124476, 2655595, 4248952, 5311190, 8497904, 10622380, 21244760, 42489520]

約数ペア:

[(1, 42489520), (2, 21244760), (4, 10622380), (5, 8497904), (8, 5311190), (10, 4248952), (16, 2655595), (20, 2124476), (40, 1062238), (80, 531119), (139, 305680), (278, 152840), (556, 76420), (695, 61136), (1112, 38210), (1390, 30568), (2224, 19105), (2780, 15284), (3821, 11120), (5560, 7642)]