820733985

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{38723}}^1$

素因数の和:38894

約数の個数: 32

約数和(自身を含む): 1468414080

約数和(自身を除く): 647680095

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 4239, 7065, 21195, 38723, 116169, 193615, 348507, 580845, 1045521, 1742535, 5227605, 6079511, 18238533, 30397555, 54715599, 91192665, 164146797, 273577995, 820733985]

約数ペア:

[(1, 820733985), (3, 273577995), (5, 164146797), (9, 91192665), (15, 54715599), (27, 30397555), (45, 18238533), (135, 6079511), (157, 5227605), (471, 1742535), (785, 1045521), (1413, 580845), (2355, 348507), (4239, 193615), (7065, 116169), (21195, 38723)]