1428340520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{368129}}^1$

素因数の和:368237

約数の個数: 32

約数和(自身を含む): 3246906600

約数和(自身を除く): 1818566080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 368129, 736258, 1472516, 1840645, 2945032, 3681290, 7362580, 14725160, 35708513, 71417026, 142834052, 178542565, 285668104, 357085130, 714170260, 1428340520]

約数ペア:

[(1, 1428340520), (2, 714170260), (4, 357085130), (5, 285668104), (8, 178542565), (10, 142834052), (20, 71417026), (40, 35708513), (97, 14725160), (194, 7362580), (388, 3681290), (485, 2945032), (776, 1840645), (970, 1472516), (1940, 736258), (3880, 368129)]