16771720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 45144000

約数和(自身を除く): 28372280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 49, 56, 70, 86, 98, 140, 172, 196, 199, 215, 245, 280, 301, 344, 392, 398, 430, 490, 602, 796, 860, 980, 995, 1204, 1393, 1505, 1592, 1720, 1960, 1990, 2107, 2408, 2786, 3010, 3980, 4214, 5572, 6020, 6965, 7960, 8428, 8557, 9751, 10535, 11144, 12040, 13930, 16856, 17114, 19502, 21070, 27860, 34228, 39004, 42140, 42785, 48755, 55720, 59899, 68456, 78008, 84280, 85570, 97510, 119798, 171140, 195020, 239596, 299495, 342280, 390040, 419293, 479192, 598990, 838586, 1197980, 1677172, 2096465, 2395960, 3354344, 4192930, 8385860, 16771720]

約数ペア:

[(1, 16771720), (2, 8385860), (4, 4192930), (5, 3354344), (7, 2395960), (8, 2096465), (10, 1677172), (14, 1197980), (20, 838586), (28, 598990), (35, 479192), (40, 419293), (43, 390040), (49, 342280), (56, 299495), (70, 239596), (86, 195020), (98, 171140), (140, 119798), (172, 97510), (196, 85570), (199, 84280), (215, 78008), (245, 68456), (280, 59899), (301, 55720), (344, 48755), (392, 42785), (398, 42140), (430, 39004), (490, 34228), (602, 27860), (796, 21070), (860, 19502), (980, 17114), (995, 16856), (1204, 13930), (1393, 12040), (1505, 11144), (1592, 10535), (1720, 9751), (1960, 8557), (1990, 8428), (2107, 7960), (2408, 6965), (2786, 6020), (3010, 5572), (3980, 4214)]