195378640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 464720256

約数和(自身を除く): 269341616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 131, 181, 206, 262, 362, 412, 515, 524, 655, 724, 824, 905, 1030, 1048, 1310, 1448, 1648, 1810, 2060, 2096, 2620, 2896, 3620, 4120, 5240, 7240, 8240, 10480, 13493, 14480, 18643, 23711, 26986, 37286, 47422, 53972, 67465, 74572, 93215, 94844, 107944, 118555, 134930, 149144, 186430, 189688, 215888, 237110, 269860, 298288, 372860, 379376, 474220, 539720, 745720, 948440, 1079440, 1491440, 1896880, 2442233, 4884466, 9768932, 12211165, 19537864, 24422330, 39075728, 48844660, 97689320, 195378640]

約数ペア:

[(1, 195378640), (2, 97689320), (4, 48844660), (5, 39075728), (8, 24422330), (10, 19537864), (16, 12211165), (20, 9768932), (40, 4884466), (80, 2442233), (103, 1896880), (131, 1491440), (181, 1079440), (206, 948440), (262, 745720), (362, 539720), (412, 474220), (515, 379376), (524, 372860), (655, 298288), (724, 269860), (824, 237110), (905, 215888), (1030, 189688), (1048, 186430), (1310, 149144), (1448, 134930), (1648, 118555), (1810, 107944), (2060, 94844), (2096, 93215), (2620, 74572), (2896, 67465), (3620, 53972), (4120, 47422), (5240, 37286), (7240, 26986), (8240, 23711), (10480, 18643), (13493, 14480)]