388543820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2775313}}^1$

素因数の和:2775329

約数の個数: 24

約数和(自身を含む): 932505504

約数和(自身を除く): 543961684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2775313, 5550626, 11101252, 13876565, 19427191, 27753130, 38854382, 55506260, 77708764, 97135955, 194271910, 388543820]

約数ペア:

[(1, 388543820), (2, 194271910), (4, 97135955), (5, 77708764), (7, 55506260), (10, 38854382), (14, 27753130), (20, 19427191), (28, 13876565), (35, 11101252), (70, 5550626), (140, 2775313)]