20628990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 57788640

約数和(自身を除く): 37159650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 97, 102, 139, 153, 170, 194, 255, 278, 291, 306, 417, 485, 510, 582, 695, 765, 834, 873, 970, 1251, 1390, 1455, 1530, 1649, 1746, 2085, 2363, 2502, 2910, 3298, 4170, 4365, 4726, 4947, 6255, 7089, 8245, 8730, 9894, 11815, 12510, 13483, 14178, 14841, 16490, 21267, 23630, 24735, 26966, 29682, 35445, 40449, 42534, 49470, 67415, 70890, 74205, 80898, 106335, 121347, 134830, 148410, 202245, 212670, 229211, 242694, 404490, 458422, 606735, 687633, 1146055, 1213470, 1375266, 2062899, 2292110, 3438165, 4125798, 6876330, 10314495, 20628990]

約数ペア:

[(1, 20628990), (2, 10314495), (3, 6876330), (5, 4125798), (6, 3438165), (9, 2292110), (10, 2062899), (15, 1375266), (17, 1213470), (18, 1146055), (30, 687633), (34, 606735), (45, 458422), (51, 404490), (85, 242694), (90, 229211), (97, 212670), (102, 202245), (139, 148410), (153, 134830), (170, 121347), (194, 106335), (255, 80898), (278, 74205), (291, 70890), (306, 67415), (417, 49470), (485, 42534), (510, 40449), (582, 35445), (695, 29682), (765, 26966), (834, 24735), (873, 23630), (970, 21267), (1251, 16490), (1390, 14841), (1455, 14178), (1530, 13483), (1649, 12510), (1746, 11815), (2085, 9894), (2363, 8730), (2502, 8245), (2910, 7089), (3298, 6255), (4170, 4947), (4365, 4726)]