68956520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:954

約数の個数: 64

約数和(自身を含む): 162328320

約数和(自身を除く): 93371800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 853, 860, 940, 1706, 1720, 1880, 2021, 3412, 4042, 4265, 6824, 8084, 8530, 10105, 16168, 17060, 20210, 34120, 36679, 40091, 40420, 73358, 80182, 80840, 146716, 160364, 183395, 200455, 293432, 320728, 366790, 400910, 733580, 801820, 1467160, 1603640, 1723913, 3447826, 6895652, 8619565, 13791304, 17239130, 34478260, 68956520]

約数ペア:

[(1, 68956520), (2, 34478260), (4, 17239130), (5, 13791304), (8, 8619565), (10, 6895652), (20, 3447826), (40, 1723913), (43, 1603640), (47, 1467160), (86, 801820), (94, 733580), (172, 400910), (188, 366790), (215, 320728), (235, 293432), (344, 200455), (376, 183395), (430, 160364), (470, 146716), (853, 80840), (860, 80182), (940, 73358), (1706, 40420), (1720, 40091), (1880, 36679), (2021, 34120), (3412, 20210), (4042, 17060), (4265, 16168), (6824, 10105), (8084, 8530)]