51139600

素因数分解:

$2^4\times 5^2\times {\mathrm{127849}}^1$

素因数の和:127867

約数の個数: 30

約数和(自身を含む): 122863850

約数和(自身を除く): 71724250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 127849, 255698, 511396, 639245, 1022792, 1278490, 2045584, 2556980, 3196225, 5113960, 6392450, 10227920, 12784900, 25569800, 51139600]

約数ペア:

[(1, 51139600), (2, 25569800), (4, 12784900), (5, 10227920), (8, 6392450), (10, 5113960), (16, 3196225), (20, 2556980), (25, 2045584), (40, 1278490), (50, 1022792), (80, 639245), (100, 511396), (200, 255698), (400, 127849)]