81557175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2633}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 156775680

約数和(自身を除く): 75218505

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 59, 75, 105, 175, 177, 295, 413, 525, 885, 1239, 1475, 2065, 2633, 4425, 6195, 7899, 10325, 13165, 18431, 30975, 39495, 55293, 65825, 92155, 155347, 197475, 276465, 460775, 466041, 776735, 1087429, 1382325, 2330205, 3262287, 3883675, 5437145, 11651025, 16311435, 27185725, 81557175]

約数ペア:

[(1, 81557175), (3, 27185725), (5, 16311435), (7, 11651025), (15, 5437145), (21, 3883675), (25, 3262287), (35, 2330205), (59, 1382325), (75, 1087429), (105, 776735), (175, 466041), (177, 460775), (295, 276465), (413, 197475), (525, 155347), (885, 92155), (1239, 65825), (1475, 55293), (2065, 39495), (2633, 30975), (4425, 18431), (6195, 13165), (7899, 10325)]