30731974

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 59028480

約数和(自身を除く): 28296506

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 169, 182, 217, 338, 403, 419, 434, 806, 838, 1183, 2366, 2821, 2933, 5239, 5447, 5642, 5866, 10478, 10894, 12989, 25978, 36673, 38129, 70811, 73346, 76258, 90923, 141622, 168857, 181846, 337714, 495677, 991354, 1181999, 2195141, 2363998, 4390282, 15365987, 30731974]

約数ペア:

[(1, 30731974), (2, 15365987), (7, 4390282), (13, 2363998), (14, 2195141), (26, 1181999), (31, 991354), (62, 495677), (91, 337714), (169, 181846), (182, 168857), (217, 141622), (338, 90923), (403, 76258), (419, 73346), (434, 70811), (806, 38129), (838, 36673), (1183, 25978), (2366, 12989), (2821, 10894), (2933, 10478), (5239, 5866), (5447, 5642)]