2647780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3229}}^1$

素因数の和:3279

約数の個数: 24

約数和(自身を含む): 5697720

約数和(自身を除く): 3049940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 3229, 6458, 12916, 16145, 32290, 64580, 132389, 264778, 529556, 661945, 1323890, 2647780]

約数ペア:

[(1, 2647780), (2, 1323890), (4, 661945), (5, 529556), (10, 264778), (20, 132389), (41, 64580), (82, 32290), (164, 16145), (205, 12916), (410, 6458), (820, 3229)]