71328985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 109624320

約数和(自身を除く): 38295335

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 169, 217, 389, 403, 455, 845, 1085, 1183, 1945, 2015, 2723, 2821, 5057, 5239, 5915, 12059, 13615, 14105, 25285, 26195, 35399, 36673, 60295, 65741, 84413, 156767, 176995, 183365, 328705, 422065, 460187, 783835, 1097369, 2037971, 2300935, 5486845, 10189855, 14265797, 71328985]

約数ペア:

[(1, 71328985), (5, 14265797), (7, 10189855), (13, 5486845), (31, 2300935), (35, 2037971), (65, 1097369), (91, 783835), (155, 460187), (169, 422065), (217, 328705), (389, 183365), (403, 176995), (455, 156767), (845, 84413), (1085, 65741), (1183, 60295), (1945, 36673), (2015, 35399), (2723, 26195), (2821, 25285), (5057, 14105), (5239, 13615), (5915, 12059)]