234640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{419}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 624960

約数和(自身を除く): 390320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 419, 560, 838, 1676, 2095, 2933, 3352, 4190, 5866, 6704, 8380, 11732, 14665, 16760, 23464, 29330, 33520, 46928, 58660, 117320, 234640]

約数ペア:

[(1, 234640), (2, 117320), (4, 58660), (5, 46928), (7, 33520), (8, 29330), (10, 23464), (14, 16760), (16, 14665), (20, 11732), (28, 8380), (35, 6704), (40, 5866), (56, 4190), (70, 3352), (80, 2933), (112, 2095), (140, 1676), (280, 838), (419, 560)]