20724616

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 24065144

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 71, 88, 107, 124, 142, 214, 248, 284, 341, 428, 568, 682, 781, 856, 1177, 1364, 1562, 2201, 2354, 2728, 3124, 3317, 4402, 4708, 6248, 6634, 7597, 8804, 9416, 13268, 15194, 17608, 24211, 26536, 30388, 36487, 48422, 60776, 72974, 83567, 96844, 145948, 167134, 193688, 235507, 291896, 334268, 471014, 668536, 942028, 1884056, 2590577, 5181154, 10362308, 20724616]

約数ペア:

[(1, 20724616), (2, 10362308), (4, 5181154), (8, 2590577), (11, 1884056), (22, 942028), (31, 668536), (44, 471014), (62, 334268), (71, 291896), (88, 235507), (107, 193688), (124, 167134), (142, 145948), (214, 96844), (248, 83567), (284, 72974), (341, 60776), (428, 48422), (568, 36487), (682, 30388), (781, 26536), (856, 24211), (1177, 17608), (1364, 15194), (1562, 13268), (2201, 9416), (2354, 8804), (2728, 7597), (3124, 6634), (3317, 6248), (4402, 4708)]