1320296720

素因数分解:

$2^4\times 5^1\times {\mathrm{16503709}}^1$

素因数の和:16503722

約数の個数: 20

約数和(自身を含む): 3069690060

約数和(自身を除く): 1749393340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16503709, 33007418, 66014836, 82518545, 132029672, 165037090, 264059344, 330074180, 660148360, 1320296720]

約数ペア:

[(1, 1320296720), (2, 660148360), (4, 330074180), (5, 264059344), (8, 165037090), (10, 132029672), (16, 82518545), (20, 66014836), (40, 33007418), (80, 16503709)]