2171960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{7757}}^1$

素因数の和:7775

約数の個数: 32

約数和(自身を含む): 5585760

約数和(自身を除く): 3413800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 7757, 15514, 31028, 38785, 54299, 62056, 77570, 108598, 155140, 217196, 271495, 310280, 434392, 542990, 1085980, 2171960]

約数ペア:

[(1, 2171960), (2, 1085980), (4, 542990), (5, 434392), (7, 310280), (8, 271495), (10, 217196), (14, 155140), (20, 108598), (28, 77570), (35, 62056), (40, 54299), (56, 38785), (70, 31028), (140, 15514), (280, 7757)]