20671544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22874056

約数列:

[1, 2, 4, 8, 19, 31, 38, 41, 62, 76, 82, 107, 124, 152, 164, 214, 248, 328, 428, 589, 779, 856, 1178, 1271, 1558, 2033, 2356, 2542, 3116, 3317, 4066, 4387, 4712, 5084, 6232, 6634, 8132, 8774, 10168, 13268, 16264, 17548, 24149, 26536, 35096, 48298, 63023, 83353, 96596, 126046, 135997, 166706, 193192, 252092, 271994, 333412, 504184, 543988, 666824, 1087976, 2583943, 5167886, 10335772, 20671544]

約数ペア:

[(1, 20671544), (2, 10335772), (4, 5167886), (8, 2583943), (19, 1087976), (31, 666824), (38, 543988), (41, 504184), (62, 333412), (76, 271994), (82, 252092), (107, 193192), (124, 166706), (152, 135997), (164, 126046), (214, 96596), (248, 83353), (328, 63023), (428, 48298), (589, 35096), (779, 26536), (856, 24149), (1178, 17548), (1271, 16264), (1558, 13268), (2033, 10168), (2356, 8774), (2542, 8132), (3116, 6634), (3317, 6232), (4066, 5084), (4387, 4712)]