74807720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{547}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 182286720

約数和(自身を除く): 107479000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 263, 520, 526, 547, 1052, 1094, 1315, 2104, 2188, 2630, 2735, 3419, 4376, 5260, 5470, 6838, 7111, 10520, 10940, 13676, 14222, 17095, 21880, 27352, 28444, 34190, 35555, 56888, 68380, 71110, 136760, 142220, 143861, 284440, 287722, 575444, 719305, 1150888, 1438610, 1870193, 2877220, 3740386, 5754440, 7480772, 9350965, 14961544, 18701930, 37403860, 74807720]

約数ペア:

[(1, 74807720), (2, 37403860), (4, 18701930), (5, 14961544), (8, 9350965), (10, 7480772), (13, 5754440), (20, 3740386), (26, 2877220), (40, 1870193), (52, 1438610), (65, 1150888), (104, 719305), (130, 575444), (260, 287722), (263, 284440), (520, 143861), (526, 142220), (547, 136760), (1052, 71110), (1094, 68380), (1315, 56888), (2104, 35555), (2188, 34190), (2630, 28444), (2735, 27352), (3419, 21880), (4376, 17095), (5260, 14222), (5470, 13676), (6838, 10940), (7111, 10520)]