981956780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{6359}}^1$

素因数の和:7478

約数の個数: 48

約数和(自身を含む): 2359203840

約数和(自身を除く): 1377247060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1103, 2206, 4412, 5515, 6359, 7721, 11030, 12718, 15442, 22060, 25436, 30884, 31795, 38605, 44513, 63590, 77210, 89026, 127180, 154420, 178052, 222565, 445130, 890260, 7013977, 14027954, 28055908, 35069885, 49097839, 70139770, 98195678, 140279540, 196391356, 245489195, 490978390, 981956780]

約数ペア:

[(1, 981956780), (2, 490978390), (4, 245489195), (5, 196391356), (7, 140279540), (10, 98195678), (14, 70139770), (20, 49097839), (28, 35069885), (35, 28055908), (70, 14027954), (140, 7013977), (1103, 890260), (2206, 445130), (4412, 222565), (5515, 178052), (6359, 154420), (7721, 127180), (11030, 89026), (12718, 77210), (15442, 63590), (22060, 44513), (25436, 38605), (30884, 31795)]