1961715800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:778

約数の個数: 192

約数和(自身を含む): 5319302400

約数和(自身を除く): 3357586600

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 44, 50, 55, 71, 76, 88, 95, 100, 110, 142, 152, 190, 200, 209, 220, 275, 284, 355, 380, 418, 440, 475, 550, 568, 661, 710, 760, 781, 836, 950, 1045, 1100, 1322, 1349, 1420, 1562, 1672, 1775, 1900, 2090, 2200, 2644, 2698, 2840, 3124, 3305, 3550, 3800, 3905, 4180, 5225, 5288, 5396, 6248, 6610, 6745, 7100, 7271, 7810, 8360, 10450, 10792, 12559, 13220, 13490, 14200, 14542, 14839, 15620, 16525, 19525, 20900, 25118, 26440, 26980, 29084, 29678, 31240, 33050, 33725, 36355, 39050, 41800, 46931, 50236, 53960, 58168, 59356, 62795, 66100, 67450, 72710, 74195, 78100, 93862, 100472, 118712, 125590, 132200, 134900, 138149, 145420, 148390, 156200, 181775, 187724, 234655, 251180, 269800, 276298, 290840, 296780, 313975, 363550, 370975, 375448, 469310, 502360, 516241, 552596, 593560, 627950, 690745, 727100, 741950, 891689, 938620, 1032482, 1105192, 1173275, 1255900, 1381490, 1454200, 1483900, 1783378, 1877240, 2064964, 2346550, 2511800, 2581205, 2762980, 2967800, 3453725, 3566756, 4129928, 4458445, 4693100, 5162410, 5525960, 6907450, 7133512, 8916890, 9386200, 9808579, 10324820, 12906025, 13814900, 17833780, 19617158, 20649640, 22292225, 25812050, 27629800, 35667560, 39234316, 44584450, 49042895, 51624100, 78468632, 89168900, 98085790, 103248200, 178337800, 196171580, 245214475, 392343160, 490428950, 980857900, 1961715800]

約数ペア:

[(1, 1961715800), (2, 980857900), (4, 490428950), (5, 392343160), (8, 245214475), (10, 196171580), (11, 178337800), (19, 103248200), (20, 98085790), (22, 89168900), (25, 78468632), (38, 51624100), (40, 49042895), (44, 44584450), (50, 39234316), (55, 35667560), (71, 27629800), (76, 25812050), (88, 22292225), (95, 20649640), (100, 19617158), (110, 17833780), (142, 13814900), (152, 12906025), (190, 10324820), (200, 9808579), (209, 9386200), (220, 8916890), (275, 7133512), (284, 6907450), (355, 5525960), (380, 5162410), (418, 4693100), (440, 4458445), (475, 4129928), (550, 3566756), (568, 3453725), (661, 2967800), (710, 2762980), (760, 2581205), (781, 2511800), (836, 2346550), (950, 2064964), (1045, 1877240), (1100, 1783378), (1322, 1483900), (1349, 1454200), (1420, 1381490), (1562, 1255900), (1672, 1173275), (1775, 1105192), (1900, 1032482), (2090, 938620), (2200, 891689), (2644, 741950), (2698, 727100), (2840, 690745), (3124, 627950), (3305, 593560), (3550, 552596), (3800, 516241), (3905, 502360), (4180, 469310), (5225, 375448), (5288, 370975), (5396, 363550), (6248, 313975), (6610, 296780), (6745, 290840), (7100, 276298), (7271, 269800), (7810, 251180), (8360, 234655), (10450, 187724), (10792, 181775), (12559, 156200), (13220, 148390), (13490, 145420), (14200, 138149), (14542, 134900), (14839, 132200), (15620, 125590), (16525, 118712), (19525, 100472), (20900, 93862), (25118, 78100), (26440, 74195), (26980, 72710), (29084, 67450), (29678, 66100), (31240, 62795), (33050, 59356), (33725, 58168), (36355, 53960), (39050, 50236), (41800, 46931)]