89991020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{1451}}^1$

素因数の和:1910

約数の個数: 48

約数和(自身を含む): 216615168

約数和(自身を除く): 126624148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 1451, 1772, 2215, 2902, 3101, 4430, 5804, 6202, 7255, 8860, 10157, 12404, 14510, 15505, 20314, 29020, 31010, 40628, 50785, 62020, 101570, 203140, 642793, 1285586, 2571172, 3213965, 4499551, 6427930, 8999102, 12855860, 17998204, 22497755, 44995510, 89991020]

約数ペア:

[(1, 89991020), (2, 44995510), (4, 22497755), (5, 17998204), (7, 12855860), (10, 8999102), (14, 6427930), (20, 4499551), (28, 3213965), (35, 2571172), (70, 1285586), (140, 642793), (443, 203140), (886, 101570), (1451, 62020), (1772, 50785), (2215, 40628), (2902, 31010), (3101, 29020), (4430, 20314), (5804, 15505), (6202, 14510), (7255, 12404), (8860, 10157)]