858543380

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1\times {\mathrm{727}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 1822818816

約数和(自身を除く): 964275436

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 431, 548, 685, 727, 862, 1370, 1454, 1724, 2155, 2740, 2908, 3635, 4310, 7270, 8620, 14540, 59047, 99599, 118094, 199198, 236188, 295235, 313337, 398396, 497995, 590470, 626674, 995990, 1180940, 1253348, 1566685, 1991980, 3133370, 6266740, 42927169, 85854338, 171708676, 214635845, 429271690, 858543380]

約数ペア:

[(1, 858543380), (2, 429271690), (4, 214635845), (5, 171708676), (10, 85854338), (20, 42927169), (137, 6266740), (274, 3133370), (431, 1991980), (548, 1566685), (685, 1253348), (727, 1180940), (862, 995990), (1370, 626674), (1454, 590470), (1724, 497995), (2155, 398396), (2740, 313337), (2908, 295235), (3635, 236188), (4310, 199198), (7270, 118094), (8620, 99599), (14540, 59047)]