18709880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66821}}^1$

素因数の和:66839

約数の個数: 32

約数和(自身を含む): 48111840

約数和(自身を除く): 29401960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66821, 133642, 267284, 334105, 467747, 534568, 668210, 935494, 1336420, 1870988, 2338735, 2672840, 3741976, 4677470, 9354940, 18709880]

約数ペア:

[(1, 18709880), (2, 9354940), (4, 4677470), (5, 3741976), (7, 2672840), (8, 2338735), (10, 1870988), (14, 1336420), (20, 935494), (28, 668210), (35, 534568), (40, 467747), (56, 334105), (70, 267284), (140, 133642), (280, 66821)]