13391980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4159}}^1$

素因数の和:4198

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 20154260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4159, 8318, 16636, 20795, 29113, 41590, 58226, 83180, 95657, 116452, 145565, 191314, 291130, 382628, 478285, 582260, 669599, 956570, 1339198, 1913140, 2678396, 3347995, 6695990, 13391980]

約数ペア:

[(1, 13391980), (2, 6695990), (4, 3347995), (5, 2678396), (7, 1913140), (10, 1339198), (14, 956570), (20, 669599), (23, 582260), (28, 478285), (35, 382628), (46, 291130), (70, 191314), (92, 145565), (115, 116452), (140, 95657), (161, 83180), (230, 58226), (322, 41590), (460, 29113), (644, 20795), (805, 16636), (1610, 8318), (3220, 4159)]