180208548

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{919}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 492273600

約数和(自身を除く): 312065052

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 419, 468, 838, 919, 1257, 1676, 1838, 2514, 2757, 3676, 3771, 5028, 5447, 5514, 7542, 8271, 10894, 11028, 11947, 15084, 16341, 16542, 21788, 23894, 32682, 33084, 35841, 47788, 49023, 65364, 71682, 98046, 107523, 143364, 196092, 215046, 385061, 430092, 770122, 1155183, 1540244, 2310366, 3465549, 4620732, 5005793, 6931098, 10011586, 13862196, 15017379, 20023172, 30034758, 45052137, 60069516, 90104274, 180208548]

約数ペア:

[(1, 180208548), (2, 90104274), (3, 60069516), (4, 45052137), (6, 30034758), (9, 20023172), (12, 15017379), (13, 13862196), (18, 10011586), (26, 6931098), (36, 5005793), (39, 4620732), (52, 3465549), (78, 2310366), (117, 1540244), (156, 1155183), (234, 770122), (419, 430092), (468, 385061), (838, 215046), (919, 196092), (1257, 143364), (1676, 107523), (1838, 98046), (2514, 71682), (2757, 65364), (3676, 49023), (3771, 47788), (5028, 35841), (5447, 33084), (5514, 32682), (7542, 23894), (8271, 21788), (10894, 16542), (11028, 16341), (11947, 15084)]