31052500

素因数分解:

$2^2\times 5^4\times {\mathrm{12421}}^1$

素因数の和:12445

約数の個数: 30

約数和(自身を含む): 67911074

約数和(自身を除く): 36858574

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 12421, 24842, 49684, 62105, 124210, 248420, 310525, 621050, 1242100, 1552625, 3105250, 6210500, 7763125, 15526250, 31052500]

約数ペア:

[(1, 31052500), (2, 15526250), (4, 7763125), (5, 6210500), (10, 3105250), (20, 1552625), (25, 1242100), (50, 621050), (100, 310525), (125, 248420), (250, 124210), (500, 62105), (625, 49684), (1250, 24842), (2500, 12421)]