31026420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1777}}^1$

素因数の和:1889

約数の個数: 72

約数和(自身を含む): 95137224

約数和(自身を除く): 64110804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1746, 1777, 1940, 2910, 3492, 3554, 4365, 5331, 5820, 7108, 8730, 8885, 10662, 15993, 17460, 17770, 21324, 26655, 31986, 35540, 53310, 63972, 79965, 106620, 159930, 172369, 319860, 344738, 517107, 689476, 861845, 1034214, 1551321, 1723690, 2068428, 2585535, 3102642, 3447380, 5171070, 6205284, 7756605, 10342140, 15513210, 31026420]

約数ペア:

[(1, 31026420), (2, 15513210), (3, 10342140), (4, 7756605), (5, 6205284), (6, 5171070), (9, 3447380), (10, 3102642), (12, 2585535), (15, 2068428), (18, 1723690), (20, 1551321), (30, 1034214), (36, 861845), (45, 689476), (60, 517107), (90, 344738), (97, 319860), (180, 172369), (194, 159930), (291, 106620), (388, 79965), (485, 63972), (582, 53310), (873, 35540), (970, 31986), (1164, 26655), (1455, 21324), (1746, 17770), (1777, 17460), (1940, 15993), (2910, 10662), (3492, 8885), (3554, 8730), (4365, 7108), (5331, 5820)]