81824004

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 215324928

約数和(自身を除く): 133500924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 157, 186, 279, 314, 372, 467, 471, 558, 628, 934, 942, 1116, 1401, 1413, 1868, 1884, 2802, 2826, 4203, 4867, 5604, 5652, 8406, 9734, 14477, 14601, 16812, 19468, 28954, 29202, 43431, 43803, 57908, 58404, 73319, 86862, 87606, 130293, 146638, 173724, 175212, 219957, 260586, 293276, 439914, 521172, 659871, 879828, 1319742, 2272889, 2639484, 4545778, 6818667, 9091556, 13637334, 20456001, 27274668, 40912002, 81824004]

約数ペア:

[(1, 81824004), (2, 40912002), (3, 27274668), (4, 20456001), (6, 13637334), (9, 9091556), (12, 6818667), (18, 4545778), (31, 2639484), (36, 2272889), (62, 1319742), (93, 879828), (124, 659871), (157, 521172), (186, 439914), (279, 293276), (314, 260586), (372, 219957), (467, 175212), (471, 173724), (558, 146638), (628, 130293), (934, 87606), (942, 86862), (1116, 73319), (1401, 58404), (1413, 57908), (1868, 43803), (1884, 43431), (2802, 29202), (2826, 28954), (4203, 19468), (4867, 16812), (5604, 14601), (5652, 14477), (8406, 9734)]