20187251708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{28657}}^1$

素因数の和:28747

約数の個数: 96

約数和(自身を含む): 43138314240

約数和(自身を除く): 22951062532

約数列:

[1, 2, 4, 13, 19, 23, 26, 31, 38, 46, 52, 62, 76, 92, 124, 247, 299, 403, 437, 494, 589, 598, 713, 806, 874, 988, 1178, 1196, 1426, 1612, 1748, 2356, 2852, 5681, 7657, 9269, 11362, 13547, 15314, 18538, 22724, 27094, 28657, 30628, 37076, 54188, 57314, 114628, 176111, 352222, 372541, 544483, 659111, 704444, 745082, 888367, 1088966, 1318222, 1490164, 1776734, 2177932, 2636444, 3553468, 7078279, 8568443, 11548771, 12523109, 14156558, 16878973, 17136886, 20432441, 23097542, 25046218, 28313116, 33757946, 34273772, 40864882, 46195084, 50092436, 67515892, 81729764, 162800417, 219426649, 265621733, 325600834, 388216379, 438853298, 531243466, 651201668, 776432758, 877706596, 1062486932, 1552865516, 5046812927, 10093625854, 20187251708]

約数ペア:

[(1, 20187251708), (2, 10093625854), (4, 5046812927), (13, 1552865516), (19, 1062486932), (23, 877706596), (26, 776432758), (31, 651201668), (38, 531243466), (46, 438853298), (52, 388216379), (62, 325600834), (76, 265621733), (92, 219426649), (124, 162800417), (247, 81729764), (299, 67515892), (403, 50092436), (437, 46195084), (494, 40864882), (589, 34273772), (598, 33757946), (713, 28313116), (806, 25046218), (874, 23097542), (988, 20432441), (1178, 17136886), (1196, 16878973), (1426, 14156558), (1612, 12523109), (1748, 11548771), (2356, 8568443), (2852, 7078279), (5681, 3553468), (7657, 2636444), (9269, 2177932), (11362, 1776734), (13547, 1490164), (15314, 1318222), (18538, 1088966), (22724, 888367), (27094, 745082), (28657, 704444), (30628, 659111), (37076, 544483), (54188, 372541), (57314, 352222), (114628, 176111)]