81171968

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 173533536

約数和(自身を除く): 92361568

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 64, 92, 113, 122, 128, 184, 226, 244, 256, 368, 452, 488, 512, 736, 904, 976, 1403, 1472, 1808, 1952, 2599, 2806, 2944, 3616, 3904, 5198, 5612, 5888, 6893, 7232, 7808, 10396, 11224, 11776, 13786, 14464, 15616, 20792, 22448, 27572, 28928, 31232, 41584, 44896, 55144, 57856, 83168, 89792, 110288, 158539, 166336, 179584, 220576, 317078, 332672, 359168, 441152, 634156, 665344, 718336, 882304, 1268312, 1330688, 1764608, 2536624, 3529216, 5073248, 10146496, 20292992, 40585984, 81171968]

約数ペア:

[(1, 81171968), (2, 40585984), (4, 20292992), (8, 10146496), (16, 5073248), (23, 3529216), (32, 2536624), (46, 1764608), (61, 1330688), (64, 1268312), (92, 882304), (113, 718336), (122, 665344), (128, 634156), (184, 441152), (226, 359168), (244, 332672), (256, 317078), (368, 220576), (452, 179584), (488, 166336), (512, 158539), (736, 110288), (904, 89792), (976, 83168), (1403, 57856), (1472, 55144), (1808, 44896), (1952, 41584), (2599, 31232), (2806, 28928), (2944, 27572), (3616, 22448), (3904, 20792), (5198, 15616), (5612, 14464), (5888, 13786), (6893, 11776), (7232, 11224), (7808, 10396)]