72112400

素因数分解:

$2^4\times 5^2\times {\mathrm{180281}}^1$

素因数の和:180299

約数の個数: 30

約数和(自身を含む): 173251002

約数和(自身を除く): 101138602

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180281, 360562, 721124, 901405, 1442248, 1802810, 2884496, 3605620, 4507025, 7211240, 9014050, 14422480, 18028100, 36056200, 72112400]

約数ペア:

[(1, 72112400), (2, 36056200), (4, 18028100), (5, 14422480), (8, 9014050), (10, 7211240), (16, 4507025), (20, 3605620), (25, 2884496), (40, 1802810), (50, 1442248), (80, 901405), (100, 721124), (200, 360562), (400, 180281)]