201670520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{7841}}^1$

素因数の和:8495

約数の個数: 32

約数和(自身を含む): 454522320

約数和(自身を除く): 252851800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 7841, 12860, 15682, 25720, 31364, 39205, 62728, 78410, 156820, 313640, 5041763, 10083526, 20167052, 25208815, 40334104, 50417630, 100835260, 201670520]

約数ペア:

[(1, 201670520), (2, 100835260), (4, 50417630), (5, 40334104), (8, 25208815), (10, 20167052), (20, 10083526), (40, 5041763), (643, 313640), (1286, 156820), (2572, 78410), (3215, 62728), (5144, 39205), (6430, 31364), (7841, 25720), (12860, 15682)]