19958750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{2281}}^1$

素因数の和:2310

約数の個数: 40

約数和(自身を含む): 42773808

約数和(自身を除く): 22815058

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 875, 1250, 1750, 2281, 4375, 4562, 8750, 11405, 15967, 22810, 31934, 57025, 79835, 114050, 159670, 285125, 399175, 570250, 798350, 1425625, 1995875, 2851250, 3991750, 9979375, 19958750]

約数ペア:

[(1, 19958750), (2, 9979375), (5, 3991750), (7, 2851250), (10, 1995875), (14, 1425625), (25, 798350), (35, 570250), (50, 399175), (70, 285125), (125, 159670), (175, 114050), (250, 79835), (350, 57025), (625, 31934), (875, 22810), (1250, 15967), (1750, 11405), (2281, 8750), (4375, 4562)]