27651280

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{821}}^1$

素因数の和:1255

約数の個数: 40

約数和(自身を含む): 64520424

約数和(自身を除く): 36869144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 821, 842, 1642, 1684, 2105, 3284, 3368, 4105, 4210, 6568, 6736, 8210, 8420, 13136, 16420, 16840, 32840, 33680, 65680, 345641, 691282, 1382564, 1728205, 2765128, 3456410, 5530256, 6912820, 13825640, 27651280]

約数ペア:

[(1, 27651280), (2, 13825640), (4, 6912820), (5, 5530256), (8, 3456410), (10, 2765128), (16, 1728205), (20, 1382564), (40, 691282), (80, 345641), (421, 65680), (821, 33680), (842, 32840), (1642, 16840), (1684, 16420), (2105, 13136), (3284, 8420), (3368, 8210), (4105, 6736), (4210, 6568)]