20625680

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{743}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 48157632

約数和(自身を除く): 27531952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 743, 1388, 1486, 1735, 2776, 2972, 3470, 3715, 5552, 5944, 6940, 7430, 11888, 13880, 14860, 27760, 29720, 59440, 257821, 515642, 1031284, 1289105, 2062568, 2578210, 4125136, 5156420, 10312840, 20625680]

約数ペア:

[(1, 20625680), (2, 10312840), (4, 5156420), (5, 4125136), (8, 2578210), (10, 2062568), (16, 1289105), (20, 1031284), (40, 515642), (80, 257821), (347, 59440), (694, 29720), (743, 27760), (1388, 14860), (1486, 13880), (1735, 11888), (2776, 7430), (2972, 6940), (3470, 5944), (3715, 5552)]