20300805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 42911232

約数和(自身を除く): 22610427

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 223, 255, 289, 315, 357, 595, 669, 765, 867, 1071, 1115, 1445, 1561, 1785, 2007, 2023, 2601, 3345, 3791, 4335, 4683, 5355, 6069, 7805, 10035, 10115, 11373, 13005, 14049, 18207, 18955, 23415, 26537, 30345, 34119, 56865, 64447, 70245, 79611, 91035, 132685, 170595, 193341, 238833, 322235, 398055, 451129, 580023, 966705, 1194165, 1353387, 2255645, 2900115, 4060161, 6766935, 20300805]

約数ペア:

[(1, 20300805), (3, 6766935), (5, 4060161), (7, 2900115), (9, 2255645), (15, 1353387), (17, 1194165), (21, 966705), (35, 580023), (45, 451129), (51, 398055), (63, 322235), (85, 238833), (105, 193341), (119, 170595), (153, 132685), (223, 91035), (255, 79611), (289, 70245), (315, 64447), (357, 56865), (595, 34119), (669, 30345), (765, 26537), (867, 23415), (1071, 18955), (1115, 18207), (1445, 14049), (1561, 13005), (1785, 11373), (2007, 10115), (2023, 10035), (2601, 7805), (3345, 6069), (3791, 5355), (4335, 4683)]