20804905264

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{52561}}^1$

素因数の和:52766

約数の個数: 80

約数和(自身を含む): 47631263904

約数和(自身を除く): 26826358640

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 173, 176, 208, 286, 346, 572, 692, 1144, 1384, 1903, 2249, 2288, 2768, 3806, 4498, 7612, 8996, 15224, 17992, 24739, 30448, 35984, 49478, 52561, 98956, 105122, 197912, 210244, 395824, 420488, 578171, 683293, 840976, 1156342, 1366586, 2312684, 2733172, 4625368, 5466344, 7516223, 9093053, 9250736, 10932688, 15032446, 18186106, 30064892, 36372212, 60129784, 72744424, 100023583, 118209689, 120259568, 145488848, 200047166, 236419378, 400094332, 472838756, 800188664, 945677512, 1300306579, 1600377328, 1891355024, 2600613158, 5201226316, 10402452632, 20804905264]

約数ペア:

[(1, 20804905264), (2, 10402452632), (4, 5201226316), (8, 2600613158), (11, 1891355024), (13, 1600377328), (16, 1300306579), (22, 945677512), (26, 800188664), (44, 472838756), (52, 400094332), (88, 236419378), (104, 200047166), (143, 145488848), (173, 120259568), (176, 118209689), (208, 100023583), (286, 72744424), (346, 60129784), (572, 36372212), (692, 30064892), (1144, 18186106), (1384, 15032446), (1903, 10932688), (2249, 9250736), (2288, 9093053), (2768, 7516223), (3806, 5466344), (4498, 4625368), (7612, 2733172), (8996, 2312684), (15224, 1366586), (17992, 1156342), (24739, 840976), (30448, 683293), (35984, 578171), (49478, 420488), (52561, 395824), (98956, 210244), (105122, 197912)]