28111360

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:241

約数の個数: 80

約数和(自身を含む): 68745600

約数和(自身を除く): 40634240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 139, 158, 160, 256, 278, 316, 320, 395, 512, 556, 632, 640, 695, 790, 1112, 1264, 1280, 1390, 1580, 2224, 2528, 2560, 2780, 3160, 4448, 5056, 5560, 6320, 8896, 10112, 10981, 11120, 12640, 17792, 20224, 21962, 22240, 25280, 35584, 40448, 43924, 44480, 50560, 54905, 71168, 87848, 88960, 101120, 109810, 175696, 177920, 202240, 219620, 351392, 355840, 439240, 702784, 878480, 1405568, 1756960, 2811136, 3513920, 5622272, 7027840, 14055680, 28111360]

約数ペア:

[(1, 28111360), (2, 14055680), (4, 7027840), (5, 5622272), (8, 3513920), (10, 2811136), (16, 1756960), (20, 1405568), (32, 878480), (40, 702784), (64, 439240), (79, 355840), (80, 351392), (128, 219620), (139, 202240), (158, 177920), (160, 175696), (256, 109810), (278, 101120), (316, 88960), (320, 87848), (395, 71168), (512, 54905), (556, 50560), (632, 44480), (640, 43924), (695, 40448), (790, 35584), (1112, 25280), (1264, 22240), (1280, 21962), (1390, 20224), (1580, 17792), (2224, 12640), (2528, 11120), (2560, 10981), (2780, 10112), (3160, 8896), (4448, 6320), (5056, 5560)]