128828830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{2237}}^1$

素因数の和:2700

約数の個数: 32

約数和(自身を含む): 250405344

約数和(自身を除く): 121576514

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 443, 886, 2215, 2237, 4430, 4474, 5759, 11185, 11518, 22370, 28795, 29081, 57590, 58162, 145405, 290810, 990991, 1981982, 4954955, 9909910, 12882883, 25765766, 64414415, 128828830]

約数ペア:

[(1, 128828830), (2, 64414415), (5, 25765766), (10, 12882883), (13, 9909910), (26, 4954955), (65, 1981982), (130, 990991), (443, 290810), (886, 145405), (2215, 58162), (2237, 57590), (4430, 29081), (4474, 28795), (5759, 22370), (11185, 11518)]