2478980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17707}}^1$

素因数の和:17723

約数の個数: 24

約数和(自身を含む): 5949888

約数和(自身を除く): 3470908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 17707, 35414, 70828, 88535, 123949, 177070, 247898, 354140, 495796, 619745, 1239490, 2478980]

約数ペア:

[(1, 2478980), (2, 1239490), (4, 619745), (5, 495796), (7, 354140), (10, 247898), (14, 177070), (20, 123949), (28, 88535), (35, 70828), (70, 35414), (140, 17707)]