77942920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3769}}^1$

素因数の和:3838

約数の個数: 64

約数和(自身を含む): 195436800

約数和(自身を除く): 117493880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 3769, 4136, 5170, 7538, 10340, 15076, 18845, 20680, 30152, 37690, 41459, 75380, 82918, 150760, 165836, 177143, 207295, 331672, 354286, 414590, 708572, 829180, 885715, 1417144, 1658360, 1771430, 1948573, 3542860, 3897146, 7085720, 7794292, 9742865, 15588584, 19485730, 38971460, 77942920]

約数ペア:

[(1, 77942920), (2, 38971460), (4, 19485730), (5, 15588584), (8, 9742865), (10, 7794292), (11, 7085720), (20, 3897146), (22, 3542860), (40, 1948573), (44, 1771430), (47, 1658360), (55, 1417144), (88, 885715), (94, 829180), (110, 708572), (188, 414590), (220, 354286), (235, 331672), (376, 207295), (440, 177143), (470, 165836), (517, 150760), (940, 82918), (1034, 75380), (1880, 41459), (2068, 37690), (2585, 30152), (3769, 20680), (4136, 18845), (5170, 15076), (7538, 10340)]