77957920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28661}}^1$

素因数の和:28693

約数の個数: 48

約数和(自身を含む): 195016248

約数和(自身を除く): 117058328

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 28661, 57322, 114644, 143305, 229288, 286610, 458576, 487237, 573220, 917152, 974474, 1146440, 1948948, 2292880, 2436185, 3897896, 4585760, 4872370, 7795792, 9744740, 15591584, 19489480, 38978960, 77957920]

約数ペア:

[(1, 77957920), (2, 38978960), (4, 19489480), (5, 15591584), (8, 9744740), (10, 7795792), (16, 4872370), (17, 4585760), (20, 3897896), (32, 2436185), (34, 2292880), (40, 1948948), (68, 1146440), (80, 974474), (85, 917152), (136, 573220), (160, 487237), (170, 458576), (272, 286610), (340, 229288), (544, 143305), (680, 114644), (1360, 57322), (2720, 28661)]