79977520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:339

約数の個数: 160

約数和(自身を含む): 233127936

約数和(自身を除く): 153150416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 80, 85, 112, 119, 124, 136, 140, 155, 170, 217, 238, 248, 271, 272, 280, 310, 340, 434, 476, 496, 527, 542, 560, 595, 620, 680, 868, 952, 1054, 1084, 1085, 1190, 1240, 1355, 1360, 1736, 1897, 1904, 2108, 2168, 2170, 2380, 2480, 2635, 2710, 3472, 3689, 3794, 4216, 4336, 4340, 4607, 4760, 5270, 5420, 7378, 7588, 8401, 8432, 8680, 9214, 9485, 9520, 10540, 10840, 14756, 15176, 16802, 17360, 18428, 18445, 18970, 21080, 21680, 23035, 29512, 30352, 32249, 33604, 36856, 36890, 37940, 42005, 42160, 46070, 58807, 59024, 64498, 67208, 73712, 73780, 75880, 84010, 92140, 117614, 128996, 134416, 142817, 147560, 151760, 161245, 168020, 184280, 235228, 257992, 285634, 294035, 295120, 322490, 336040, 368560, 470456, 515984, 571268, 588070, 644980, 672080, 714085, 940912, 999719, 1142536, 1176140, 1289960, 1428170, 1999438, 2285072, 2352280, 2579920, 2856340, 3998876, 4704560, 4998595, 5712680, 7997752, 9997190, 11425360, 15995504, 19994380, 39988760, 79977520]

約数ペア:

[(1, 79977520), (2, 39988760), (4, 19994380), (5, 15995504), (7, 11425360), (8, 9997190), (10, 7997752), (14, 5712680), (16, 4998595), (17, 4704560), (20, 3998876), (28, 2856340), (31, 2579920), (34, 2352280), (35, 2285072), (40, 1999438), (56, 1428170), (62, 1289960), (68, 1176140), (70, 1142536), (80, 999719), (85, 940912), (112, 714085), (119, 672080), (124, 644980), (136, 588070), (140, 571268), (155, 515984), (170, 470456), (217, 368560), (238, 336040), (248, 322490), (271, 295120), (272, 294035), (280, 285634), (310, 257992), (340, 235228), (434, 184280), (476, 168020), (496, 161245), (527, 151760), (542, 147560), (560, 142817), (595, 134416), (620, 128996), (680, 117614), (868, 92140), (952, 84010), (1054, 75880), (1084, 73780), (1085, 73712), (1190, 67208), (1240, 64498), (1355, 59024), (1360, 58807), (1736, 46070), (1897, 42160), (1904, 42005), (2108, 37940), (2168, 36890), (2170, 36856), (2380, 33604), (2480, 32249), (2635, 30352), (2710, 29512), (3472, 23035), (3689, 21680), (3794, 21080), (4216, 18970), (4336, 18445), (4340, 18428), (4607, 17360), (4760, 16802), (5270, 15176), (5420, 14756), (7378, 10840), (7588, 10540), (8401, 9520), (8432, 9485), (8680, 9214)]