27997740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1427}}^1$

素因数の和:1551

約数の個数: 72

約数和(自身を含む): 85765680

約数和(自身を除く): 57767940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1427, 1635, 1962, 2180, 2854, 3270, 3924, 4281, 4905, 5708, 6540, 7135, 8562, 9810, 12843, 14270, 17124, 19620, 21405, 25686, 28540, 42810, 51372, 64215, 85620, 128430, 155543, 256860, 311086, 466629, 622172, 777715, 933258, 1399887, 1555430, 1866516, 2333145, 2799774, 3110860, 4666290, 5599548, 6999435, 9332580, 13998870, 27997740]

約数ペア:

[(1, 27997740), (2, 13998870), (3, 9332580), (4, 6999435), (5, 5599548), (6, 4666290), (9, 3110860), (10, 2799774), (12, 2333145), (15, 1866516), (18, 1555430), (20, 1399887), (30, 933258), (36, 777715), (45, 622172), (60, 466629), (90, 311086), (109, 256860), (180, 155543), (218, 128430), (327, 85620), (436, 64215), (545, 51372), (654, 42810), (981, 28540), (1090, 25686), (1308, 21405), (1427, 19620), (1635, 17124), (1962, 14270), (2180, 12843), (2854, 9810), (3270, 8562), (3924, 7135), (4281, 6540), (4905, 5708)]