127019020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{71359}}^1$

素因数の和:71457

約数の個数: 24

約数和(自身を含む): 269740800

約数和(自身を除く): 142721780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 71359, 142718, 285436, 356795, 713590, 1427180, 6350951, 12701902, 25403804, 31754755, 63509510, 127019020]

約数ペア:

[(1, 127019020), (2, 63509510), (4, 31754755), (5, 25403804), (10, 12701902), (20, 6350951), (89, 1427180), (178, 713590), (356, 356795), (445, 285436), (890, 142718), (1780, 71359)]