39971960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{142757}}^1$

素因数の和:142775

約数の個数: 32

約数和(自身を含む): 102785760

約数和(自身を除く): 62813800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 142757, 285514, 571028, 713785, 999299, 1142056, 1427570, 1998598, 2855140, 3997196, 4996495, 5710280, 7994392, 9992990, 19985980, 39971960]

約数ペア:

[(1, 39971960), (2, 19985980), (4, 9992990), (5, 7994392), (7, 5710280), (8, 4996495), (10, 3997196), (14, 2855140), (20, 1998598), (28, 1427570), (35, 1142056), (40, 999299), (56, 713785), (70, 571028), (140, 285514), (280, 142757)]