20099680

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{467}}^1$

素因数の和:751

約数の個数: 48

約数和(自身を含む): 47764080

約数和(自身を除く): 27664400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 467, 538, 934, 1076, 1345, 1868, 2152, 2335, 2690, 3736, 4304, 4670, 5380, 7472, 8608, 9340, 10760, 14944, 18680, 21520, 37360, 43040, 74720, 125623, 251246, 502492, 628115, 1004984, 1256230, 2009968, 2512460, 4019936, 5024920, 10049840, 20099680]

約数ペア:

[(1, 20099680), (2, 10049840), (4, 5024920), (5, 4019936), (8, 2512460), (10, 2009968), (16, 1256230), (20, 1004984), (32, 628115), (40, 502492), (80, 251246), (160, 125623), (269, 74720), (467, 43040), (538, 37360), (934, 21520), (1076, 18680), (1345, 14944), (1868, 10760), (2152, 9340), (2335, 8608), (2690, 7472), (3736, 5380), (4304, 4670)]