12884720

素因数分解:

$2^4\times 5^1\times {\mathrm{161059}}^1$

素因数の和:161072

約数の個数: 20

約数和(自身を含む): 29957160

約数和(自身を除く): 17072440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161059, 322118, 644236, 805295, 1288472, 1610590, 2576944, 3221180, 6442360, 12884720]

約数ペア:

[(1, 12884720), (2, 6442360), (4, 3221180), (5, 2576944), (8, 1610590), (10, 1288472), (16, 805295), (20, 644236), (40, 322118), (80, 161059)]