133640440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 307008000

約数和(自身を除く): 173367560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 163, 199, 206, 326, 398, 412, 515, 652, 796, 815, 824, 995, 1030, 1304, 1592, 1630, 1990, 2060, 3260, 3980, 4120, 6520, 7960, 16789, 20497, 32437, 33578, 40994, 64874, 67156, 81988, 83945, 102485, 129748, 134312, 162185, 163976, 167890, 204970, 259496, 324370, 335780, 409940, 648740, 671560, 819880, 1297480, 3341011, 6682022, 13364044, 16705055, 26728088, 33410110, 66820220, 133640440]

約数ペア:

[(1, 133640440), (2, 66820220), (4, 33410110), (5, 26728088), (8, 16705055), (10, 13364044), (20, 6682022), (40, 3341011), (103, 1297480), (163, 819880), (199, 671560), (206, 648740), (326, 409940), (398, 335780), (412, 324370), (515, 259496), (652, 204970), (796, 167890), (815, 163976), (824, 162185), (995, 134312), (1030, 129748), (1304, 102485), (1592, 83945), (1630, 81988), (1990, 67156), (2060, 64874), (3260, 40994), (3980, 33578), (4120, 32437), (6520, 20497), (7960, 16789)]