81327885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 143524224

約数和(自身を除く): 62196339

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 361, 437, 653, 1083, 1311, 1805, 1959, 2185, 3265, 5415, 6555, 8303, 9795, 12407, 15019, 24909, 37221, 41515, 45057, 62035, 75095, 124545, 186105, 225285, 235733, 285361, 707199, 856083, 1178665, 1426805, 3535995, 4280415, 5421859, 16265577, 27109295, 81327885]

約数ペア:

[(1, 81327885), (3, 27109295), (5, 16265577), (15, 5421859), (19, 4280415), (23, 3535995), (57, 1426805), (69, 1178665), (95, 856083), (115, 707199), (285, 285361), (345, 235733), (361, 225285), (437, 186105), (653, 124545), (1083, 75095), (1311, 62035), (1805, 45057), (1959, 41515), (2185, 37221), (3265, 24909), (5415, 15019), (6555, 12407), (8303, 9795)]