39687620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1439}}^1$

素因数の和:1652

約数の個数: 48

約数和(自身を含む): 95800320

約数和(自身を除く): 56112700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1439, 1970, 2758, 2878, 3940, 5516, 5756, 6895, 7195, 10073, 13790, 14390, 20146, 27580, 28780, 40292, 50365, 100730, 201460, 283483, 566966, 1133932, 1417415, 1984381, 2834830, 3968762, 5669660, 7937524, 9921905, 19843810, 39687620]

約数ペア:

[(1, 39687620), (2, 19843810), (4, 9921905), (5, 7937524), (7, 5669660), (10, 3968762), (14, 2834830), (20, 1984381), (28, 1417415), (35, 1133932), (70, 566966), (140, 283483), (197, 201460), (394, 100730), (788, 50365), (985, 40292), (1379, 28780), (1439, 27580), (1970, 20146), (2758, 14390), (2878, 13790), (3940, 10073), (5516, 7195), (5756, 6895)]