9978400

素因数分解:

$2^5\times 5^2\times {\mathrm{12473}}^1$

素因数の和:12493

約数の個数: 36

約数和(自身を含む): 24361722

約数和(自身を除く): 14383322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 12473, 24946, 49892, 62365, 99784, 124730, 199568, 249460, 311825, 399136, 498920, 623650, 997840, 1247300, 1995680, 2494600, 4989200, 9978400]

約数ペア:

[(1, 9978400), (2, 4989200), (4, 2494600), (5, 1995680), (8, 1247300), (10, 997840), (16, 623650), (20, 498920), (25, 399136), (32, 311825), (40, 249460), (50, 199568), (80, 124730), (100, 99784), (160, 62365), (200, 49892), (400, 24946), (800, 12473)]