281365280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{251219}}^1$

素因数の和:251241

約数の個数: 48

約数和(自身を含む): 759689280

約数和(自身を除く): 478324000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 251219, 502438, 1004876, 1256095, 1758533, 2009752, 2512190, 3517066, 4019504, 5024380, 7034132, 8039008, 8792665, 10048760, 14068264, 17585330, 20097520, 28136528, 35170660, 40195040, 56273056, 70341320, 140682640, 281365280]

約数ペア:

[(1, 281365280), (2, 140682640), (4, 70341320), (5, 56273056), (7, 40195040), (8, 35170660), (10, 28136528), (14, 20097520), (16, 17585330), (20, 14068264), (28, 10048760), (32, 8792665), (35, 8039008), (40, 7034132), (56, 5024380), (70, 4019504), (80, 3517066), (112, 2512190), (140, 2009752), (160, 1758533), (224, 1256095), (280, 1004876), (560, 502438), (1120, 251219)]