261354560

素因数分解:

$2^6\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4721}}^1$

素因数の和:4911

約数の個数: 56

約数和(自身を含む): 626080536

約数和(自身を除く): 364725976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 173, 320, 346, 692, 865, 1384, 1730, 2768, 3460, 4721, 5536, 6920, 9442, 11072, 13840, 18884, 23605, 27680, 37768, 47210, 55360, 75536, 94420, 151072, 188840, 302144, 377680, 755360, 816733, 1510720, 1633466, 3266932, 4083665, 6533864, 8167330, 13067728, 16334660, 26135456, 32669320, 52270912, 65338640, 130677280, 261354560]

約数ペア:

[(1, 261354560), (2, 130677280), (4, 65338640), (5, 52270912), (8, 32669320), (10, 26135456), (16, 16334660), (20, 13067728), (32, 8167330), (40, 6533864), (64, 4083665), (80, 3266932), (160, 1633466), (173, 1510720), (320, 816733), (346, 755360), (692, 377680), (865, 302144), (1384, 188840), (1730, 151072), (2768, 94420), (3460, 75536), (4721, 55360), (5536, 47210), (6920, 37768), (9442, 27680), (11072, 23605), (13840, 18884)]