1288392020

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{73121}}^1$

素因数の和:74011

約数の個数: 24

約数和(自身を含む): 2708731368

約数和(自身を除く): 1420339348

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 17620, 73121, 146242, 292484, 365605, 731210, 1462420, 64419601, 128839202, 257678404, 322098005, 644196010, 1288392020]

約数ペア:

[(1, 1288392020), (2, 644196010), (4, 322098005), (5, 257678404), (10, 128839202), (20, 64419601), (881, 1462420), (1762, 731210), (3524, 365605), (4405, 292484), (8810, 146242), (17620, 73121)]