20730640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37019}}^1$

素因数の和:37039

約数の個数: 40

約数和(自身を含む): 55085760

約数和(自身を除く): 34355120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37019, 74038, 148076, 185095, 259133, 296152, 370190, 518266, 592304, 740380, 1036532, 1295665, 1480760, 2073064, 2591330, 2961520, 4146128, 5182660, 10365320, 20730640]

約数ペア:

[(1, 20730640), (2, 10365320), (4, 5182660), (5, 4146128), (7, 2961520), (8, 2591330), (10, 2073064), (14, 1480760), (16, 1295665), (20, 1036532), (28, 740380), (35, 592304), (40, 518266), (56, 370190), (70, 296152), (80, 259133), (112, 185095), (140, 148076), (280, 74038), (560, 37019)]