8142800

素因数分解:

$2^4\times 5^2\times {\mathrm{20357}}^1$

素因数の和:20375

約数の個数: 30

約数和(自身を含む): 19564038

約数和(自身を除く): 11421238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20357, 40714, 81428, 101785, 162856, 203570, 325712, 407140, 508925, 814280, 1017850, 1628560, 2035700, 4071400, 8142800]

約数ペア:

[(1, 8142800), (2, 4071400), (4, 2035700), (5, 1628560), (8, 1017850), (10, 814280), (16, 508925), (20, 407140), (25, 325712), (40, 203570), (50, 162856), (80, 101785), (100, 81428), (200, 40714), (400, 20357)]