20023160980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{251737}}^1$

素因数の和:251884

約数の個数: 48

約数和(自身を含む): 43518451536

約数和(自身を除く): 23495290556

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 410, 485, 820, 970, 1940, 3977, 7954, 15908, 19885, 39770, 79540, 251737, 503474, 1006948, 1258685, 2517370, 5034740, 10321217, 20642434, 24418489, 41284868, 48836978, 51606085, 97673956, 103212170, 122092445, 206424340, 244184890, 488369780, 1001158049, 2002316098, 4004632196, 5005790245, 10011580490, 20023160980]

約数ペア:

[(1, 20023160980), (2, 10011580490), (4, 5005790245), (5, 4004632196), (10, 2002316098), (20, 1001158049), (41, 488369780), (82, 244184890), (97, 206424340), (164, 122092445), (194, 103212170), (205, 97673956), (388, 51606085), (410, 48836978), (485, 41284868), (820, 24418489), (970, 20642434), (1940, 10321217), (3977, 5034740), (7954, 2517370), (15908, 1258685), (19885, 1006948), (39770, 503474), (79540, 251737)]