16840720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16193}}^1$

素因数の和:16219

約数の個数: 40

約数和(自身を含む): 42169176

約数和(自身を除く): 25328456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 16193, 32386, 64772, 80965, 129544, 161930, 210509, 259088, 323860, 421018, 647720, 842036, 1052545, 1295440, 1684072, 2105090, 3368144, 4210180, 8420360, 16840720]

約数ペア:

[(1, 16840720), (2, 8420360), (4, 4210180), (5, 3368144), (8, 2105090), (10, 1684072), (13, 1295440), (16, 1052545), (20, 842036), (26, 647720), (40, 421018), (52, 323860), (65, 259088), (80, 210509), (104, 161930), (130, 129544), (208, 80965), (260, 64772), (520, 32386), (1040, 16193)]