1749742420

素因数分解:

$2^2\times 5^1\times {\mathrm{87487121}}^1$

素因数の和:87487130

約数の個数: 12

約数和(自身を含む): 3674459124

約数和(自身を除く): 1924716704

約数列:

[1, 2, 4, 5, 10, 20, 87487121, 174974242, 349948484, 437435605, 874871210, 1749742420]

約数ペア:

[(1, 1749742420), (2, 874871210), (4, 437435605), (5, 349948484), (10, 174974242), (20, 87487121)]