81241860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193433}}^1$

素因数の和:193452

約数の個数: 48

約数和(自身を含む): 259975296

約数和(自身を除く): 178733436

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, 193433, 386866, 580299, 773732, 967165, 1160598, 1354031, 1934330, 2321196, 2708062, 2901495, 3868660, 4062093, 5416124, 5802990, 6770155, 8124186, 11605980, 13540310, 16248372, 20310465, 27080620, 40620930, 81241860]

約数ペア:

[(1, 81241860), (2, 40620930), (3, 27080620), (4, 20310465), (5, 16248372), (6, 13540310), (7, 11605980), (10, 8124186), (12, 6770155), (14, 5802990), (15, 5416124), (20, 4062093), (21, 3868660), (28, 2901495), (30, 2708062), (35, 2321196), (42, 1934330), (60, 1354031), (70, 1160598), (84, 967165), (105, 773732), (140, 580299), (210, 386866), (420, 193433)]