2020339980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{80749}}^1$

素因数の和:80903

約数の個数: 72

約数和(自身を含む): 6172530000

約数和(自身を除く): 4152190020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 12510, 25020, 80749, 161498, 242247, 322996, 403745, 484494, 726741, 807490, 968988, 1211235, 1453482, 1614980, 2422470, 2906964, 3633705, 4844940, 7267410, 11224111, 14534820, 22448222, 33672333, 44896444, 56120555, 67344666, 101016999, 112241110, 134689332, 168361665, 202033998, 224482220, 336723330, 404067996, 505084995, 673446660, 1010169990, 2020339980]

約数ペア:

[(1, 2020339980), (2, 1010169990), (3, 673446660), (4, 505084995), (5, 404067996), (6, 336723330), (9, 224482220), (10, 202033998), (12, 168361665), (15, 134689332), (18, 112241110), (20, 101016999), (30, 67344666), (36, 56120555), (45, 44896444), (60, 33672333), (90, 22448222), (139, 14534820), (180, 11224111), (278, 7267410), (417, 4844940), (556, 3633705), (695, 2906964), (834, 2422470), (1251, 1614980), (1390, 1453482), (1668, 1211235), (2085, 968988), (2502, 807490), (2780, 726741), (4170, 484494), (5004, 403745), (6255, 322996), (8340, 242247), (12510, 161498), (25020, 80749)]