81212724

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2281}}^1$

素因数の和:2357

約数の個数: 72

約数和(自身を含む): 219291072

約数和(自身を除く): 138078348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 774, 828, 989, 1548, 1978, 2281, 2967, 3956, 4562, 5934, 6843, 8901, 9124, 11868, 13686, 17802, 20529, 27372, 35604, 41058, 52463, 82116, 98083, 104926, 157389, 196166, 209852, 294249, 314778, 392332, 472167, 588498, 629556, 882747, 944334, 1176996, 1765494, 1888668, 2255909, 3530988, 4511818, 6767727, 9023636, 13535454, 20303181, 27070908, 40606362, 81212724]

約数ペア:

[(1, 81212724), (2, 40606362), (3, 27070908), (4, 20303181), (6, 13535454), (9, 9023636), (12, 6767727), (18, 4511818), (23, 3530988), (36, 2255909), (43, 1888668), (46, 1765494), (69, 1176996), (86, 944334), (92, 882747), (129, 629556), (138, 588498), (172, 472167), (207, 392332), (258, 314778), (276, 294249), (387, 209852), (414, 196166), (516, 157389), (774, 104926), (828, 98083), (989, 82116), (1548, 52463), (1978, 41058), (2281, 35604), (2967, 27372), (3956, 20529), (4562, 17802), (5934, 13686), (6843, 11868), (8901, 9124)]