2178712900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12601}}^1$

素因数の和:12654

約数の個数: 144

約数和(自身を含む): 6125580160

約数和(自身を除く): 3946867260

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 130, 133, 140, 175, 182, 190, 247, 260, 266, 325, 350, 364, 380, 455, 475, 494, 532, 650, 665, 700, 910, 950, 988, 1235, 1300, 1330, 1729, 1820, 1900, 2275, 2470, 2660, 3325, 3458, 4550, 4940, 6175, 6650, 6916, 8645, 9100, 12350, 12601, 13300, 17290, 24700, 25202, 34580, 43225, 50404, 63005, 86450, 88207, 126010, 163813, 172900, 176414, 239419, 252020, 315025, 327626, 352828, 441035, 478838, 630050, 655252, 819065, 882070, 957676, 1146691, 1197095, 1260100, 1638130, 1675933, 1764140, 2205175, 2293382, 2394190, 3112447, 3276260, 3351866, 4095325, 4410350, 4586764, 4788380, 5733455, 5985475, 6224894, 6703732, 8190650, 8379665, 8820700, 11466910, 11970950, 12449788, 15562235, 16381300, 16759330, 21787129, 22933820, 23941900, 28667275, 31124470, 33518660, 41898325, 43574258, 57334550, 62248940, 77811175, 83796650, 87148516, 108935645, 114669100, 155622350, 167593300, 217871290, 311244700, 435742580, 544678225, 1089356450, 2178712900]

約数ペア:

[(1, 2178712900), (2, 1089356450), (4, 544678225), (5, 435742580), (7, 311244700), (10, 217871290), (13, 167593300), (14, 155622350), (19, 114669100), (20, 108935645), (25, 87148516), (26, 83796650), (28, 77811175), (35, 62248940), (38, 57334550), (50, 43574258), (52, 41898325), (65, 33518660), (70, 31124470), (76, 28667275), (91, 23941900), (95, 22933820), (100, 21787129), (130, 16759330), (133, 16381300), (140, 15562235), (175, 12449788), (182, 11970950), (190, 11466910), (247, 8820700), (260, 8379665), (266, 8190650), (325, 6703732), (350, 6224894), (364, 5985475), (380, 5733455), (455, 4788380), (475, 4586764), (494, 4410350), (532, 4095325), (650, 3351866), (665, 3276260), (700, 3112447), (910, 2394190), (950, 2293382), (988, 2205175), (1235, 1764140), (1300, 1675933), (1330, 1638130), (1729, 1260100), (1820, 1197095), (1900, 1146691), (2275, 957676), (2470, 882070), (2660, 819065), (3325, 655252), (3458, 630050), (4550, 478838), (4940, 441035), (6175, 352828), (6650, 327626), (6916, 315025), (8645, 252020), (9100, 239419), (12350, 176414), (12601, 172900), (13300, 163813), (17290, 126010), (24700, 88207), (25202, 86450), (34580, 63005), (43225, 50404)]