201408920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{63737}}^1$

素因数の和:63827

約数の個数: 32

約数和(自身を含む): 458913600

約数和(自身を除く): 257504680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 63737, 127474, 254948, 318685, 509896, 637370, 1274740, 2549480, 5035223, 10070446, 20140892, 25176115, 40281784, 50352230, 100704460, 201408920]

約数ペア:

[(1, 201408920), (2, 100704460), (4, 50352230), (5, 40281784), (8, 25176115), (10, 20140892), (20, 10070446), (40, 5035223), (79, 2549480), (158, 1274740), (316, 637370), (395, 509896), (632, 318685), (790, 254948), (1580, 127474), (3160, 63737)]