219959120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{691}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 537501312

約数和(自身を除く): 317542192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 173, 184, 230, 346, 368, 460, 691, 692, 865, 920, 1382, 1384, 1730, 1840, 2764, 2768, 3455, 3460, 3979, 5528, 6910, 6920, 7958, 11056, 13820, 13840, 15893, 15916, 19895, 27640, 31786, 31832, 39790, 55280, 63572, 63664, 79465, 79580, 119543, 127144, 158930, 159160, 239086, 254288, 317860, 318320, 478172, 597715, 635720, 956344, 1195430, 1271440, 1912688, 2390860, 2749489, 4781720, 5498978, 9563440, 10997956, 13747445, 21995912, 27494890, 43991824, 54989780, 109979560, 219959120]

約数ペア:

[(1, 219959120), (2, 109979560), (4, 54989780), (5, 43991824), (8, 27494890), (10, 21995912), (16, 13747445), (20, 10997956), (23, 9563440), (40, 5498978), (46, 4781720), (80, 2749489), (92, 2390860), (115, 1912688), (173, 1271440), (184, 1195430), (230, 956344), (346, 635720), (368, 597715), (460, 478172), (691, 318320), (692, 317860), (865, 254288), (920, 239086), (1382, 159160), (1384, 158930), (1730, 127144), (1840, 119543), (2764, 79580), (2768, 79465), (3455, 63664), (3460, 63572), (3979, 55280), (5528, 39790), (6910, 31832), (6920, 31786), (7958, 27640), (11056, 19895), (13820, 15916), (13840, 15893)]