72416820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172421}}^1$

素因数の和:172440

約数の個数: 48

約数和(自身を含む): 231735168

約数和(自身を除く): 159318348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 172421, 344842, 517263, 689684, 862105, 1034526, 1206947, 1724210, 2069052, 2413894, 2586315, 3448420, 3620841, 4827788, 5172630, 6034735, 7241682, 10345260, 12069470, 14483364, 18104205, 24138940, 36208410, 72416820]

約数ペア:

[(1, 72416820), (2, 36208410), (3, 24138940), (4, 18104205), (5, 14483364), (6, 12069470), (7, 10345260), (10, 7241682), (12, 6034735), (14, 5172630), (15, 4827788), (20, 3620841), (21, 3448420), (28, 2586315), (30, 2413894), (35, 2069052), (42, 1724210), (60, 1206947), (70, 1034526), (84, 862105), (105, 689684), (140, 517263), (210, 344842), (420, 172421)]