19915694480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{57881}}^1$

素因数の和:57945

約数の個数: 160

約数和(自身を含む): 55811213568

約数和(自身を除く): 35895519088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 23, 34, 40, 44, 46, 55, 68, 80, 85, 88, 92, 110, 115, 136, 170, 176, 184, 187, 220, 230, 253, 272, 340, 368, 374, 391, 440, 460, 506, 680, 748, 782, 880, 920, 935, 1012, 1265, 1360, 1496, 1564, 1840, 1870, 1955, 2024, 2530, 2992, 3128, 3740, 3910, 4048, 4301, 5060, 6256, 7480, 7820, 8602, 10120, 14960, 15640, 17204, 20240, 21505, 31280, 34408, 43010, 57881, 68816, 86020, 115762, 172040, 231524, 289405, 344080, 463048, 578810, 636691, 926096, 983977, 1157620, 1273382, 1331263, 1967954, 2315240, 2546764, 2662526, 3183455, 3935908, 4630480, 4919885, 5093528, 5325052, 6366910, 6656315, 7871816, 9839770, 10187056, 10650104, 10823747, 12733820, 13312630, 14643893, 15743632, 19679540, 21300208, 21647494, 22631471, 25467640, 26625260, 29287786, 39359080, 43294988, 45262942, 50935280, 53250520, 54118735, 58575572, 73219465, 78718160, 86589976, 90525884, 106501040, 108237470, 113157355, 117151144, 146438930, 173179952, 181051768, 216474940, 226314710, 234302288, 248946181, 292877860, 362103536, 432949880, 452629420, 497892362, 585755720, 865899760, 905258840, 995784724, 1171511440, 1244730905, 1810517680, 1991569448, 2489461810, 3983138896, 4978923620, 9957847240, 19915694480]

約数ペア:

[(1, 19915694480), (2, 9957847240), (4, 4978923620), (5, 3983138896), (8, 2489461810), (10, 1991569448), (11, 1810517680), (16, 1244730905), (17, 1171511440), (20, 995784724), (22, 905258840), (23, 865899760), (34, 585755720), (40, 497892362), (44, 452629420), (46, 432949880), (55, 362103536), (68, 292877860), (80, 248946181), (85, 234302288), (88, 226314710), (92, 216474940), (110, 181051768), (115, 173179952), (136, 146438930), (170, 117151144), (176, 113157355), (184, 108237470), (187, 106501040), (220, 90525884), (230, 86589976), (253, 78718160), (272, 73219465), (340, 58575572), (368, 54118735), (374, 53250520), (391, 50935280), (440, 45262942), (460, 43294988), (506, 39359080), (680, 29287786), (748, 26625260), (782, 25467640), (880, 22631471), (920, 21647494), (935, 21300208), (1012, 19679540), (1265, 15743632), (1360, 14643893), (1496, 13312630), (1564, 12733820), (1840, 10823747), (1870, 10650104), (1955, 10187056), (2024, 9839770), (2530, 7871816), (2992, 6656315), (3128, 6366910), (3740, 5325052), (3910, 5093528), (4048, 4919885), (4301, 4630480), (5060, 3935908), (6256, 3183455), (7480, 2662526), (7820, 2546764), (8602, 2315240), (10120, 1967954), (14960, 1331263), (15640, 1273382), (17204, 1157620), (20240, 983977), (21505, 926096), (31280, 636691), (34408, 578810), (43010, 463048), (57881, 344080), (68816, 289405), (86020, 231524), (115762, 172040)]