318640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{569}}^1$

素因数の和:589

約数の個数: 40

約数和(自身を含む): 848160

約数和(自身を除く): 529520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 569, 1138, 2276, 2845, 3983, 4552, 5690, 7966, 9104, 11380, 15932, 19915, 22760, 31864, 39830, 45520, 63728, 79660, 159320, 318640]

約数ペア:

[(1, 318640), (2, 159320), (4, 79660), (5, 63728), (7, 45520), (8, 39830), (10, 31864), (14, 22760), (16, 19915), (20, 15932), (28, 11380), (35, 9104), (40, 7966), (56, 5690), (70, 4552), (80, 3983), (112, 2845), (140, 2276), (280, 1138), (560, 569)]