81135220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1879}}^1$

素因数の和:2032

約数の個数: 48

約数和(自身を含む): 181923840

約数和(自身を除く): 100788620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 127, 170, 254, 340, 508, 635, 1270, 1879, 2159, 2540, 3758, 4318, 7516, 8636, 9395, 10795, 18790, 21590, 31943, 37580, 43180, 63886, 127772, 159715, 238633, 319430, 477266, 638860, 954532, 1193165, 2386330, 4056761, 4772660, 8113522, 16227044, 20283805, 40567610, 81135220]

約数ペア:

[(1, 81135220), (2, 40567610), (4, 20283805), (5, 16227044), (10, 8113522), (17, 4772660), (20, 4056761), (34, 2386330), (68, 1193165), (85, 954532), (127, 638860), (170, 477266), (254, 319430), (340, 238633), (508, 159715), (635, 127772), (1270, 63886), (1879, 43180), (2159, 37580), (2540, 31943), (3758, 21590), (4318, 18790), (7516, 10795), (8636, 9395)]