209920256

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9011}}^1$

素因数の和:9047

約数の個数: 72

約数和(自身を含む): 515774784

約数和(自身を除く): 305854528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 1456, 1664, 1792, 2912, 3328, 5824, 9011, 11648, 18022, 23296, 36044, 63077, 72088, 117143, 126154, 144176, 234286, 252308, 288352, 468572, 504616, 576704, 820001, 937144, 1009232, 1153408, 1640002, 1874288, 2018464, 2306816, 3280004, 3748576, 4036928, 6560008, 7497152, 8073856, 13120016, 14994304, 16147712, 26240032, 29988608, 52480064, 104960128, 209920256]

約数ペア:

[(1, 209920256), (2, 104960128), (4, 52480064), (7, 29988608), (8, 26240032), (13, 16147712), (14, 14994304), (16, 13120016), (26, 8073856), (28, 7497152), (32, 6560008), (52, 4036928), (56, 3748576), (64, 3280004), (91, 2306816), (104, 2018464), (112, 1874288), (128, 1640002), (182, 1153408), (208, 1009232), (224, 937144), (256, 820001), (364, 576704), (416, 504616), (448, 468572), (728, 288352), (832, 252308), (896, 234286), (1456, 144176), (1664, 126154), (1792, 117143), (2912, 72088), (3328, 63077), (5824, 36044), (9011, 23296), (11648, 18022)]