81546556

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 186103680

約数和(自身を除く): 104557124

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 169, 182, 247, 266, 338, 364, 494, 532, 676, 907, 988, 1183, 1729, 1814, 2366, 3211, 3458, 3628, 4732, 6349, 6422, 6916, 11791, 12698, 12844, 17233, 22477, 23582, 25396, 34466, 44954, 47164, 68932, 82537, 89908, 120631, 153283, 165074, 224029, 241262, 306566, 330148, 448058, 482524, 613132, 896116, 1072981, 1568203, 2145962, 2912377, 3136406, 4291924, 5824754, 6272812, 11649508, 20386639, 40773278, 81546556]

約数ペア:

[(1, 81546556), (2, 40773278), (4, 20386639), (7, 11649508), (13, 6272812), (14, 5824754), (19, 4291924), (26, 3136406), (28, 2912377), (38, 2145962), (52, 1568203), (76, 1072981), (91, 896116), (133, 613132), (169, 482524), (182, 448058), (247, 330148), (266, 306566), (338, 241262), (364, 224029), (494, 165074), (532, 153283), (676, 120631), (907, 89908), (988, 82537), (1183, 68932), (1729, 47164), (1814, 44954), (2366, 34466), (3211, 25396), (3458, 23582), (3628, 22477), (4732, 17233), (6349, 12844), (6422, 12698), (6916, 11791)]