51411680

素因数分解:

$2^5\times 5^1\times {\mathrm{321323}}^1$

素因数の和:321338

約数の個数: 24

約数和(自身を含む): 121460472

約数和(自身を除く): 70048792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 321323, 642646, 1285292, 1606615, 2570584, 3213230, 5141168, 6426460, 10282336, 12852920, 25705840, 51411680]

約数ペア:

[(1, 51411680), (2, 25705840), (4, 12852920), (5, 10282336), (8, 6426460), (10, 5141168), (16, 3213230), (20, 2570584), (32, 1606615), (40, 1285292), (80, 642646), (160, 321323)]