81003640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{857}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 194594400

約数和(自身を除く): 113590760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 139, 170, 278, 340, 556, 680, 695, 857, 1112, 1390, 1714, 2363, 2780, 3428, 4285, 4726, 5560, 6856, 8570, 9452, 11815, 14569, 17140, 18904, 23630, 29138, 34280, 47260, 58276, 72845, 94520, 116552, 119123, 145690, 238246, 291380, 476492, 582760, 595615, 952984, 1191230, 2025091, 2382460, 4050182, 4764920, 8100364, 10125455, 16200728, 20250910, 40501820, 81003640]

約数ペア:

[(1, 81003640), (2, 40501820), (4, 20250910), (5, 16200728), (8, 10125455), (10, 8100364), (17, 4764920), (20, 4050182), (34, 2382460), (40, 2025091), (68, 1191230), (85, 952984), (136, 595615), (139, 582760), (170, 476492), (278, 291380), (340, 238246), (556, 145690), (680, 119123), (695, 116552), (857, 94520), (1112, 72845), (1390, 58276), (1714, 47260), (2363, 34280), (2780, 29138), (3428, 23630), (4285, 18904), (4726, 17140), (5560, 14569), (6856, 11815), (8570, 9452)]