81254460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193463}}^1$

素因数の和:193482

約数の個数: 48

約数和(自身を含む): 260015616

約数和(自身を除く): 178761156

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, 193463, 386926, 580389, 773852, 967315, 1160778, 1354241, 1934630, 2321556, 2708482, 2901945, 3869260, 4062723, 5416964, 5803890, 6771205, 8125446, 11607780, 13542410, 16250892, 20313615, 27084820, 40627230, 81254460]

約数ペア:

[(1, 81254460), (2, 40627230), (3, 27084820), (4, 20313615), (5, 16250892), (6, 13542410), (7, 11607780), (10, 8125446), (12, 6771205), (14, 5803890), (15, 5416964), (20, 4062723), (21, 3869260), (28, 2901945), (30, 2708482), (35, 2321556), (42, 1934630), (60, 1354241), (70, 1160778), (84, 967315), (105, 773852), (140, 580389), (210, 386926), (420, 193463)]