72124400

素因数分解:

$2^4\times 5^2\times {\mathrm{180311}}^1$

素因数の和:180329

約数の個数: 30

約数和(自身を含む): 173279832

約数和(自身を除く): 101155432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180311, 360622, 721244, 901555, 1442488, 1803110, 2884976, 3606220, 4507775, 7212440, 9015550, 14424880, 18031100, 36062200, 72124400]

約数ペア:

[(1, 72124400), (2, 36062200), (4, 18031100), (5, 14424880), (8, 9015550), (10, 7212440), (16, 4507775), (20, 3606220), (25, 2884976), (40, 1803110), (50, 1442488), (80, 901555), (100, 721244), (200, 360622), (400, 180311)]