77985880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 214617600

約数和(自身を除く): 136631720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 107, 133, 137, 140, 152, 190, 214, 266, 274, 280, 380, 428, 532, 535, 548, 665, 685, 749, 760, 856, 959, 1064, 1070, 1096, 1330, 1370, 1498, 1918, 2033, 2140, 2603, 2660, 2740, 2996, 3745, 3836, 4066, 4280, 4795, 5206, 5320, 5480, 5992, 7490, 7672, 8132, 9590, 10165, 10412, 13015, 14231, 14659, 14980, 16264, 18221, 19180, 20330, 20824, 26030, 28462, 29318, 29960, 36442, 38360, 40660, 52060, 56924, 58636, 71155, 72884, 73295, 81320, 91105, 102613, 104120, 113848, 117272, 142310, 145768, 146590, 182210, 205226, 278521, 284620, 293180, 364420, 410452, 513065, 557042, 569240, 586360, 728840, 820904, 1026130, 1114084, 1392605, 1949647, 2052260, 2228168, 2785210, 3899294, 4104520, 5570420, 7798588, 9748235, 11140840, 15597176, 19496470, 38992940, 77985880]

約数ペア:

[(1, 77985880), (2, 38992940), (4, 19496470), (5, 15597176), (7, 11140840), (8, 9748235), (10, 7798588), (14, 5570420), (19, 4104520), (20, 3899294), (28, 2785210), (35, 2228168), (38, 2052260), (40, 1949647), (56, 1392605), (70, 1114084), (76, 1026130), (95, 820904), (107, 728840), (133, 586360), (137, 569240), (140, 557042), (152, 513065), (190, 410452), (214, 364420), (266, 293180), (274, 284620), (280, 278521), (380, 205226), (428, 182210), (532, 146590), (535, 145768), (548, 142310), (665, 117272), (685, 113848), (749, 104120), (760, 102613), (856, 91105), (959, 81320), (1064, 73295), (1070, 72884), (1096, 71155), (1330, 58636), (1370, 56924), (1498, 52060), (1918, 40660), (2033, 38360), (2140, 36442), (2603, 29960), (2660, 29318), (2740, 28462), (2996, 26030), (3745, 20824), (3836, 20330), (4066, 19180), (4280, 18221), (4795, 16264), (5206, 14980), (5320, 14659), (5480, 14231), (5992, 13015), (7490, 10412), (7672, 10165), (8132, 9590)]