1371920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1559}}^1$

素因数の和:1583

約数の個数: 40

約数和(自身を含む): 3481920

約数和(自身を除く): 2110000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1559, 3118, 6236, 7795, 12472, 15590, 17149, 24944, 31180, 34298, 62360, 68596, 85745, 124720, 137192, 171490, 274384, 342980, 685960, 1371920]

約数ペア:

[(1, 1371920), (2, 685960), (4, 342980), (5, 274384), (8, 171490), (10, 137192), (11, 124720), (16, 85745), (20, 68596), (22, 62360), (40, 34298), (44, 31180), (55, 24944), (80, 17149), (88, 15590), (110, 12472), (176, 7795), (220, 6236), (440, 3118), (880, 1559)]