2171120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3877}}^1$

素因数の和:3897

約数の個数: 40

約数和(自身を含む): 5770464

約数和(自身を除く): 3599344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3877, 7754, 15508, 19385, 27139, 31016, 38770, 54278, 62032, 77540, 108556, 135695, 155080, 217112, 271390, 310160, 434224, 542780, 1085560, 2171120]

約数ペア:

[(1, 2171120), (2, 1085560), (4, 542780), (5, 434224), (7, 310160), (8, 271390), (10, 217112), (14, 155080), (16, 135695), (20, 108556), (28, 77540), (35, 62032), (40, 54278), (56, 38770), (70, 31016), (80, 27139), (112, 19385), (140, 15508), (280, 7754), (560, 3877)]