1007780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1229}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 2169720

約数和(自身を除く): 1161940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1229, 2458, 4916, 6145, 12290, 24580, 50389, 100778, 201556, 251945, 503890, 1007780]

約数ペア:

[(1, 1007780), (2, 503890), (4, 251945), (5, 201556), (10, 100778), (20, 50389), (41, 24580), (82, 12290), (164, 6145), (205, 4916), (410, 2458), (820, 1229)]