39902480

素因数分解:

$2^4\times 5^1\times {\mathrm{498781}}^1$

素因数の和:498794

約数の個数: 20

約数和(自身を含む): 92773452

約数和(自身を除く): 52870972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 498781, 997562, 1995124, 2493905, 3990248, 4987810, 7980496, 9975620, 19951240, 39902480]

約数ペア:

[(1, 39902480), (2, 19951240), (4, 9975620), (5, 7980496), (8, 4987810), (10, 3990248), (16, 2493905), (20, 1995124), (40, 997562), (80, 498781)]