78415820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560113}}^1$

素因数の和:560129

約数の個数: 24

約数和(自身を含む): 188198304

約数和(自身を除く): 109782484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560113, 1120226, 2240452, 2800565, 3920791, 5601130, 7841582, 11202260, 15683164, 19603955, 39207910, 78415820]

約数ペア:

[(1, 78415820), (2, 39207910), (4, 19603955), (5, 15683164), (7, 11202260), (10, 7841582), (14, 5601130), (20, 3920791), (28, 2800565), (35, 2240452), (70, 1120226), (140, 560113)]