20646390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5419}}^1$

素因数の和:5556

約数の個数: 32

約数和(自身を含む): 49950720

約数和(自身を除く): 29304330

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 127, 254, 381, 635, 762, 1270, 1905, 3810, 5419, 10838, 16257, 27095, 32514, 54190, 81285, 162570, 688213, 1376426, 2064639, 3441065, 4129278, 6882130, 10323195, 20646390]

約数ペア:

[(1, 20646390), (2, 10323195), (3, 6882130), (5, 4129278), (6, 3441065), (10, 2064639), (15, 1376426), (30, 688213), (127, 162570), (254, 81285), (381, 54190), (635, 32514), (762, 27095), (1270, 16257), (1905, 10838), (3810, 5419)]