13016720

素因数分解:

$2^4\times 5^1\times {\mathrm{162709}}^1$

素因数の和:162722

約数の個数: 20

約数和(自身を含む): 30264060

約数和(自身を除く): 17247340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 162709, 325418, 650836, 813545, 1301672, 1627090, 2603344, 3254180, 6508360, 13016720]

約数ペア:

[(1, 13016720), (2, 6508360), (4, 3254180), (5, 2603344), (8, 1627090), (10, 1301672), (16, 813545), (20, 650836), (40, 325418), (80, 162709)]