81997740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41413}}^1$

素因数の和:41439

約数の個数: 72

約数和(自身を含む): 271344528

約数和(自身を除く): 189346788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 41413, 82826, 124239, 165652, 207065, 248478, 372717, 414130, 455543, 496956, 621195, 745434, 828260, 911086, 1242390, 1366629, 1490868, 1822172, 1863585, 2277715, 2484780, 2733258, 3727170, 4099887, 4555430, 5466516, 6833145, 7454340, 8199774, 9110860, 13666290, 16399548, 20499435, 27332580, 40998870, 81997740]

約数ペア:

[(1, 81997740), (2, 40998870), (3, 27332580), (4, 20499435), (5, 16399548), (6, 13666290), (9, 9110860), (10, 8199774), (11, 7454340), (12, 6833145), (15, 5466516), (18, 4555430), (20, 4099887), (22, 3727170), (30, 2733258), (33, 2484780), (36, 2277715), (44, 1863585), (45, 1822172), (55, 1490868), (60, 1366629), (66, 1242390), (90, 911086), (99, 828260), (110, 745434), (132, 621195), (165, 496956), (180, 455543), (198, 414130), (220, 372717), (330, 248478), (396, 207065), (495, 165652), (660, 124239), (990, 82826), (1980, 41413)]