20768436

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 57075200

約数和(自身を除く): 36306764

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 199, 223, 234, 398, 446, 468, 597, 669, 796, 892, 1194, 1338, 1791, 2007, 2388, 2587, 2676, 2899, 3582, 4014, 5174, 5798, 7164, 7761, 8028, 8697, 10348, 11596, 15522, 17394, 23283, 26091, 31044, 34788, 44377, 46566, 52182, 88754, 93132, 104364, 133131, 177508, 266262, 399393, 532524, 576901, 798786, 1153802, 1597572, 1730703, 2307604, 3461406, 5192109, 6922812, 10384218, 20768436]

約数ペア:

[(1, 20768436), (2, 10384218), (3, 6922812), (4, 5192109), (6, 3461406), (9, 2307604), (12, 1730703), (13, 1597572), (18, 1153802), (26, 798786), (36, 576901), (39, 532524), (52, 399393), (78, 266262), (117, 177508), (156, 133131), (199, 104364), (223, 93132), (234, 88754), (398, 52182), (446, 46566), (468, 44377), (597, 34788), (669, 31044), (796, 26091), (892, 23283), (1194, 17394), (1338, 15522), (1791, 11596), (2007, 10348), (2388, 8697), (2587, 8028), (2676, 7761), (2899, 7164), (3582, 5798), (4014, 5174)]