20275612

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 44126208

約数和(自身を除く): 23850596

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 49, 62, 71, 94, 98, 124, 142, 188, 196, 217, 284, 329, 434, 497, 658, 868, 994, 1316, 1457, 1519, 1988, 2201, 2303, 2914, 3038, 3337, 3479, 4402, 4606, 5828, 6076, 6674, 6958, 8804, 9212, 10199, 13348, 13916, 15407, 20398, 23359, 30814, 40796, 46718, 61628, 71393, 93436, 103447, 107849, 142786, 163513, 206894, 215698, 285572, 327026, 413788, 431396, 654052, 724129, 1448258, 2896516, 5068903, 10137806, 20275612]

約数ペア:

[(1, 20275612), (2, 10137806), (4, 5068903), (7, 2896516), (14, 1448258), (28, 724129), (31, 654052), (47, 431396), (49, 413788), (62, 327026), (71, 285572), (94, 215698), (98, 206894), (124, 163513), (142, 142786), (188, 107849), (196, 103447), (217, 93436), (284, 71393), (329, 61628), (434, 46718), (497, 40796), (658, 30814), (868, 23359), (994, 20398), (1316, 15407), (1457, 13916), (1519, 13348), (1988, 10199), (2201, 9212), (2303, 8804), (2914, 6958), (3038, 6674), (3337, 6076), (3479, 5828), (4402, 4606)]