257439870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{317827}}^1$

素因数の和:317846

約数の個数: 40

約数和(自身を含む): 692229384

約数和(自身を除く): 434789514

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 317827, 635654, 953481, 1589135, 1906962, 2860443, 3178270, 4767405, 5720886, 8581329, 9534810, 14302215, 17162658, 25743987, 28604430, 42906645, 51487974, 85813290, 128719935, 257439870]

約数ペア:

[(1, 257439870), (2, 128719935), (3, 85813290), (5, 51487974), (6, 42906645), (9, 28604430), (10, 25743987), (15, 17162658), (18, 14302215), (27, 9534810), (30, 8581329), (45, 5720886), (54, 4767405), (81, 3178270), (90, 2860443), (135, 1906962), (162, 1589135), (270, 953481), (405, 635654), (810, 317827)]