1622780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 3492720

約数和(自身を除く): 1869940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1979, 3958, 7916, 9895, 19790, 39580, 81139, 162278, 324556, 405695, 811390, 1622780]

約数ペア:

[(1, 1622780), (2, 811390), (4, 405695), (5, 324556), (10, 162278), (20, 81139), (41, 39580), (82, 19790), (164, 9895), (205, 7916), (410, 3958), (820, 1979)]