68675320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245269}}^1$

素因数の和:245287

約数の個数: 32

約数和(自身を含む): 176594400

約数和(自身を除く): 107919080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245269, 490538, 981076, 1226345, 1716883, 1962152, 2452690, 3433766, 4905380, 6867532, 8584415, 9810760, 13735064, 17168830, 34337660, 68675320]

約数ペア:

[(1, 68675320), (2, 34337660), (4, 17168830), (5, 13735064), (7, 9810760), (8, 8584415), (10, 6867532), (14, 4905380), (20, 3433766), (28, 2452690), (35, 1962152), (40, 1716883), (56, 1226345), (70, 981076), (140, 490538), (280, 245269)]