1289968360

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{142067}}^1$

素因数の和:142305

約数の個数: 32

約数和(自身を含む): 2915235360

約数和(自身を除く): 1625267000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 142067, 284134, 568268, 710335, 1136536, 1420670, 2841340, 5682680, 32249209, 64498418, 128996836, 161246045, 257993672, 322492090, 644984180, 1289968360]

約数ペア:

[(1, 1289968360), (2, 644984180), (4, 322492090), (5, 257993672), (8, 161246045), (10, 128996836), (20, 64498418), (40, 32249209), (227, 5682680), (454, 2841340), (908, 1420670), (1135, 1136536), (1816, 710335), (2270, 568268), (4540, 284134), (9080, 142067)]