16880380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^2$

素因数の和:574

約数の個数: 36

約数和(自身を含む): 38811528

約数和(自身を除く): 21931148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 277, 554, 1108, 1385, 2770, 3047, 5540, 6094, 12188, 15235, 30470, 60940, 76729, 153458, 306916, 383645, 767290, 844019, 1534580, 1688038, 3376076, 4220095, 8440190, 16880380]

約数ペア:

[(1, 16880380), (2, 8440190), (4, 4220095), (5, 3376076), (10, 1688038), (11, 1534580), (20, 844019), (22, 767290), (44, 383645), (55, 306916), (110, 153458), (220, 76729), (277, 60940), (554, 30470), (1108, 15235), (1385, 12188), (2770, 6094), (3047, 5540)]