664740618

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{6971}}^1$

素因数の和:7690

約数の個数: 32

約数和(自身を含む): 1389491712

約数和(自身を除く): 724751094

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 691, 1382, 2073, 4146, 6971, 13942, 15893, 20913, 31786, 41826, 47679, 95358, 160333, 320666, 480999, 961998, 4816961, 9633922, 14450883, 28901766, 110790103, 221580206, 332370309, 664740618]

約数ペア:

[(1, 664740618), (2, 332370309), (3, 221580206), (6, 110790103), (23, 28901766), (46, 14450883), (69, 9633922), (138, 4816961), (691, 961998), (1382, 480999), (2073, 320666), (4146, 160333), (6971, 95358), (13942, 47679), (15893, 41826), (20913, 31786)]