88540280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 204763680

約数和(自身を除く): 116223400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 131, 244, 262, 277, 305, 488, 524, 554, 610, 655, 1048, 1108, 1220, 1310, 1385, 2216, 2440, 2620, 2770, 5240, 5540, 7991, 11080, 15982, 16897, 31964, 33794, 36287, 39955, 63928, 67588, 72574, 79910, 84485, 135176, 145148, 159820, 168970, 181435, 290296, 319640, 337940, 362870, 675880, 725740, 1451480, 2213507, 4427014, 8854028, 11067535, 17708056, 22135070, 44270140, 88540280]

約数ペア:

[(1, 88540280), (2, 44270140), (4, 22135070), (5, 17708056), (8, 11067535), (10, 8854028), (20, 4427014), (40, 2213507), (61, 1451480), (122, 725740), (131, 675880), (244, 362870), (262, 337940), (277, 319640), (305, 290296), (488, 181435), (524, 168970), (554, 159820), (610, 145148), (655, 135176), (1048, 84485), (1108, 79910), (1220, 72574), (1310, 67588), (1385, 63928), (2216, 39955), (2440, 36287), (2620, 33794), (2770, 31964), (5240, 16897), (5540, 15982), (7991, 11080)]