20295140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23599}}^1$

素因数の和:23651

約数の個数: 24

約数和(自身を含む): 43612800

約数和(自身を除く): 23317660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23599, 47198, 94396, 117995, 235990, 471980, 1014757, 2029514, 4059028, 5073785, 10147570, 20295140]

約数ペア:

[(1, 20295140), (2, 10147570), (4, 5073785), (5, 4059028), (10, 2029514), (20, 1014757), (43, 471980), (86, 235990), (172, 117995), (215, 94396), (430, 47198), (860, 23599)]