1221320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1607}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 2894400

約数和(自身を除く): 1673080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1607, 3214, 6428, 8035, 12856, 16070, 30533, 32140, 61066, 64280, 122132, 152665, 244264, 305330, 610660, 1221320]

約数ペア:

[(1, 1221320), (2, 610660), (4, 305330), (5, 244264), (8, 152665), (10, 122132), (19, 64280), (20, 61066), (38, 32140), (40, 30533), (76, 16070), (95, 12856), (152, 8035), (190, 6428), (380, 3214), (760, 1607)]