80741440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1493}}^1$

素因数の和:1536

約数の個数: 84

約数和(自身を含む): 208332324

約数和(自身を除く): 127590884

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 416, 520, 676, 832, 845, 1040, 1352, 1493, 1690, 2080, 2704, 2986, 3380, 4160, 5408, 5972, 6760, 7465, 10816, 11944, 13520, 14930, 19409, 23888, 27040, 29860, 38818, 47776, 54080, 59720, 77636, 95552, 97045, 119440, 155272, 194090, 238880, 252317, 310544, 388180, 477760, 504634, 621088, 776360, 1009268, 1242176, 1261585, 1552720, 2018536, 2523170, 3105440, 4037072, 5046340, 6210880, 8074144, 10092680, 16148288, 20185360, 40370720, 80741440]

約数ペア:

[(1, 80741440), (2, 40370720), (4, 20185360), (5, 16148288), (8, 10092680), (10, 8074144), (13, 6210880), (16, 5046340), (20, 4037072), (26, 3105440), (32, 2523170), (40, 2018536), (52, 1552720), (64, 1261585), (65, 1242176), (80, 1009268), (104, 776360), (130, 621088), (160, 504634), (169, 477760), (208, 388180), (260, 310544), (320, 252317), (338, 238880), (416, 194090), (520, 155272), (676, 119440), (832, 97045), (845, 95552), (1040, 77636), (1352, 59720), (1493, 54080), (1690, 47776), (2080, 38818), (2704, 29860), (2986, 27040), (3380, 23888), (4160, 19409), (5408, 14930), (5972, 13520), (6760, 11944), (7465, 10816)]