38978960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28661}}^1$

素因数の和:28691

約数の個数: 40

約数和(自身を含む): 95960376

約数和(自身を除く): 56981416

約数列:

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

約数ペア:

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