80439920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:343

約数の個数: 160

約数和(自身を含む): 228199680

約数和(自身を除く): 147759760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 80, 85, 88, 95, 110, 136, 152, 170, 176, 187, 190, 209, 220, 272, 283, 304, 323, 340, 374, 380, 418, 440, 566, 646, 680, 748, 760, 836, 880, 935, 1045, 1132, 1292, 1360, 1415, 1496, 1520, 1615, 1672, 1870, 2090, 2264, 2584, 2830, 2992, 3113, 3230, 3344, 3553, 3740, 4180, 4528, 4811, 5168, 5377, 5660, 6226, 6460, 7106, 7480, 8360, 9622, 10754, 11320, 12452, 12920, 14212, 14960, 15565, 16720, 17765, 19244, 21508, 22640, 24055, 24904, 25840, 26885, 28424, 31130, 35530, 38488, 43016, 48110, 49808, 52921, 53770, 56848, 59147, 62260, 71060, 76976, 86032, 91409, 96220, 105842, 107540, 118294, 124520, 142120, 182818, 192440, 211684, 215080, 236588, 249040, 264605, 284240, 295735, 365636, 384880, 423368, 430160, 457045, 473176, 529210, 591470, 731272, 846736, 914090, 946352, 1005499, 1058420, 1182940, 1462544, 1828180, 2010998, 2116840, 2365880, 3656360, 4021996, 4233680, 4731760, 5027495, 7312720, 8043992, 10054990, 16087984, 20109980, 40219960, 80439920]

約数ペア:

[(1, 80439920), (2, 40219960), (4, 20109980), (5, 16087984), (8, 10054990), (10, 8043992), (11, 7312720), (16, 5027495), (17, 4731760), (19, 4233680), (20, 4021996), (22, 3656360), (34, 2365880), (38, 2116840), (40, 2010998), (44, 1828180), (55, 1462544), (68, 1182940), (76, 1058420), (80, 1005499), (85, 946352), (88, 914090), (95, 846736), (110, 731272), (136, 591470), (152, 529210), (170, 473176), (176, 457045), (187, 430160), (190, 423368), (209, 384880), (220, 365636), (272, 295735), (283, 284240), (304, 264605), (323, 249040), (340, 236588), (374, 215080), (380, 211684), (418, 192440), (440, 182818), (566, 142120), (646, 124520), (680, 118294), (748, 107540), (760, 105842), (836, 96220), (880, 91409), (935, 86032), (1045, 76976), (1132, 71060), (1292, 62260), (1360, 59147), (1415, 56848), (1496, 53770), (1520, 52921), (1615, 49808), (1672, 48110), (1870, 43016), (2090, 38488), (2264, 35530), (2584, 31130), (2830, 28424), (2992, 26885), (3113, 25840), (3230, 24904), (3344, 24055), (3553, 22640), (3740, 21508), (4180, 19244), (4528, 17765), (4811, 16720), (5168, 15565), (5377, 14960), (5660, 14212), (6226, 12920), (6460, 12452), (7106, 11320), (7480, 10754), (8360, 9622)]