19769440

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{787}}^1$

素因数の和:959

約数の個数: 48

約数和(自身を含む): 47062512

約数和(自身を除く): 27293072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 787, 1256, 1570, 1574, 2512, 3140, 3148, 3935, 5024, 6280, 6296, 7870, 12560, 12592, 15740, 25120, 25184, 31480, 62960, 123559, 125920, 247118, 494236, 617795, 988472, 1235590, 1976944, 2471180, 3953888, 4942360, 9884720, 19769440]

約数ペア:

[(1, 19769440), (2, 9884720), (4, 4942360), (5, 3953888), (8, 2471180), (10, 1976944), (16, 1235590), (20, 988472), (32, 617795), (40, 494236), (80, 247118), (157, 125920), (160, 123559), (314, 62960), (628, 31480), (785, 25184), (787, 25120), (1256, 15740), (1570, 12592), (1574, 12560), (2512, 7870), (3140, 6296), (3148, 6280), (3935, 5024)]