215311356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{937}}^1$

素因数の和:1451

約数の個数: 72

約数和(自身を含む): 587945904

約数和(自身を除く): 372634548

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 491, 937, 982, 1473, 1874, 1964, 2811, 2946, 3748, 4419, 5622, 5892, 6383, 8433, 8838, 11244, 12181, 12766, 16866, 17676, 19149, 24362, 25532, 33732, 36543, 38298, 48724, 57447, 73086, 76596, 109629, 114894, 146172, 219258, 229788, 438516, 460067, 920134, 1380201, 1840268, 2760402, 4140603, 5520804, 5980871, 8281206, 11961742, 16562412, 17942613, 23923484, 35885226, 53827839, 71770452, 107655678, 215311356]

約数ペア:

[(1, 215311356), (2, 107655678), (3, 71770452), (4, 53827839), (6, 35885226), (9, 23923484), (12, 17942613), (13, 16562412), (18, 11961742), (26, 8281206), (36, 5980871), (39, 5520804), (52, 4140603), (78, 2760402), (117, 1840268), (156, 1380201), (234, 920134), (468, 460067), (491, 438516), (937, 229788), (982, 219258), (1473, 146172), (1874, 114894), (1964, 109629), (2811, 76596), (2946, 73086), (3748, 57447), (4419, 48724), (5622, 38298), (5892, 36543), (6383, 33732), (8433, 25532), (8838, 24362), (11244, 19149), (12181, 17676), (12766, 16866)]