1990213390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{607}}^1\times {\mathrm{727}}^1$

素因数の和:1393

約数の個数: 64

約数和(自身を含む): 4015484928

約数和(自身を除く): 2025271538

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 607, 727, 902, 1214, 1454, 2255, 3035, 3635, 4510, 6070, 6677, 7270, 7997, 13354, 15994, 24887, 29807, 33385, 39985, 49774, 59614, 66770, 79970, 124435, 149035, 248870, 273757, 298070, 327877, 441289, 547514, 655754, 882578, 1368785, 1639385, 2206445, 2737570, 3278770, 4412890, 4854179, 9708358, 18092849, 24270895, 36185698, 48541790, 90464245, 180928490, 199021339, 398042678, 995106695, 1990213390]

約数ペア:

[(1, 1990213390), (2, 995106695), (5, 398042678), (10, 199021339), (11, 180928490), (22, 90464245), (41, 48541790), (55, 36185698), (82, 24270895), (110, 18092849), (205, 9708358), (410, 4854179), (451, 4412890), (607, 3278770), (727, 2737570), (902, 2206445), (1214, 1639385), (1454, 1368785), (2255, 882578), (3035, 655754), (3635, 547514), (4510, 441289), (6070, 327877), (6677, 298070), (7270, 273757), (7997, 248870), (13354, 149035), (15994, 124435), (24887, 79970), (29807, 66770), (33385, 59614), (39985, 49774)]