19496440

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{811}}^1$

素因数の和:1423

約数の個数: 32

約数和(自身を含む): 43994160

約数和(自身を除く): 24497720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 811, 1202, 1622, 2404, 3005, 3244, 4055, 4808, 6010, 6488, 8110, 12020, 16220, 24040, 32440, 487411, 974822, 1949644, 2437055, 3899288, 4874110, 9748220, 19496440]

約数ペア:

[(1, 19496440), (2, 9748220), (4, 4874110), (5, 3899288), (8, 2437055), (10, 1949644), (20, 974822), (40, 487411), (601, 32440), (811, 24040), (1202, 16220), (1622, 12020), (2404, 8110), (3005, 6488), (3244, 6010), (4055, 4808)]