1289771895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{977}}^1$

素因数の和:1200

約数の個数: 64

約数和(自身を含む): 2271338496

約数和(自身を除く): 981566601

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 167, 255, 465, 501, 527, 835, 977, 1581, 2505, 2635, 2839, 2931, 4885, 5177, 7905, 8517, 14195, 14655, 15531, 16609, 25885, 30287, 42585, 49827, 77655, 83045, 88009, 90861, 151435, 163159, 249135, 264027, 440045, 454305, 489477, 514879, 815795, 1320135, 1544637, 2447385, 2574395, 2773703, 5057929, 7723185, 8321109, 13868515, 15173787, 25289645, 41605545, 75868935, 85984793, 257954379, 429923965, 1289771895]

約数ペア:

[(1, 1289771895), (3, 429923965), (5, 257954379), (15, 85984793), (17, 75868935), (31, 41605545), (51, 25289645), (85, 15173787), (93, 13868515), (155, 8321109), (167, 7723185), (255, 5057929), (465, 2773703), (501, 2574395), (527, 2447385), (835, 1544637), (977, 1320135), (1581, 815795), (2505, 514879), (2635, 489477), (2839, 454305), (2931, 440045), (4885, 264027), (5177, 249135), (7905, 163159), (8517, 151435), (14195, 90861), (14655, 88009), (15531, 83045), (16609, 77655), (25885, 49827), (30287, 42585)]