81721740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{7873}}^1$

素因数の和:8058

約数の個数: 48

約数和(自身を含む): 230172768

約数和(自身を除く): 148451028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 2076, 2595, 3460, 5190, 7873, 10380, 15746, 23619, 31492, 39365, 47238, 78730, 94476, 118095, 157460, 236190, 472380, 1362029, 2724058, 4086087, 5448116, 6810145, 8172174, 13620290, 16344348, 20430435, 27240580, 40860870, 81721740]

約数ペア:

[(1, 81721740), (2, 40860870), (3, 27240580), (4, 20430435), (5, 16344348), (6, 13620290), (10, 8172174), (12, 6810145), (15, 5448116), (20, 4086087), (30, 2724058), (60, 1362029), (173, 472380), (346, 236190), (519, 157460), (692, 118095), (865, 94476), (1038, 78730), (1730, 47238), (2076, 39365), (2595, 31492), (3460, 23619), (5190, 15746), (7873, 10380)]