31688440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113173}}^1$

素因数の和:113191

約数の個数: 32

約数和(自身を含む): 81485280

約数和(自身を除く): 49796840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 113173, 226346, 452692, 565865, 792211, 905384, 1131730, 1584422, 2263460, 3168844, 3961055, 4526920, 6337688, 7922110, 15844220, 31688440]

約数ペア:

[(1, 31688440), (2, 15844220), (4, 7922110), (5, 6337688), (7, 4526920), (8, 3961055), (10, 3168844), (14, 2263460), (20, 1584422), (28, 1131730), (35, 905384), (40, 792211), (56, 565865), (70, 452692), (140, 226346), (280, 113173)]