289363520

素因数分解:

$2^6\times 5^1\times {\mathrm{904261}}^1$

素因数の和:904278

約数の個数: 28

約数和(自身を含む): 689047644

約数和(自身を除く): 399684124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 904261, 1808522, 3617044, 4521305, 7234088, 9042610, 14468176, 18085220, 28936352, 36170440, 57872704, 72340880, 144681760, 289363520]

約数ペア:

[(1, 289363520), (2, 144681760), (4, 72340880), (5, 57872704), (8, 36170440), (10, 28936352), (16, 18085220), (20, 14468176), (32, 9042610), (40, 7234088), (64, 4521305), (80, 3617044), (160, 1808522), (320, 904261)]