81489018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:619

約数の個数: 64

約数和(自身を含む): 184246272

約数和(自身を除く): 102757254

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 67, 78, 93, 134, 186, 201, 402, 403, 503, 806, 871, 1006, 1209, 1509, 1742, 2077, 2418, 2613, 3018, 4154, 5226, 6231, 6539, 12462, 13078, 15593, 19617, 27001, 31186, 33701, 39234, 46779, 54002, 67402, 81003, 93558, 101103, 162006, 202206, 202709, 405418, 438113, 608127, 876226, 1044731, 1216254, 1314339, 2089462, 2628678, 3134193, 6268386, 13581503, 27163006, 40744509, 81489018]

約数ペア:

[(1, 81489018), (2, 40744509), (3, 27163006), (6, 13581503), (13, 6268386), (26, 3134193), (31, 2628678), (39, 2089462), (62, 1314339), (67, 1216254), (78, 1044731), (93, 876226), (134, 608127), (186, 438113), (201, 405418), (402, 202709), (403, 202206), (503, 162006), (806, 101103), (871, 93558), (1006, 81003), (1209, 67402), (1509, 54002), (1742, 46779), (2077, 39234), (2418, 33701), (2613, 31186), (3018, 27001), (4154, 19617), (5226, 15593), (6231, 13078), (6539, 12462)]