20019174910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{575429}}^1$

素因数の和:575521

約数の個数: 48

約数和(自身を含む): 42508164960

約数和(自身を除く): 22488990050

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 710, 994, 2485, 3479, 4970, 6958, 17395, 34790, 575429, 1150858, 2877145, 4028003, 5754290, 8056006, 20140015, 28196021, 40280030, 40855459, 56392042, 81710918, 140980105, 204277295, 281960210, 285988213, 408554590, 571976426, 1429941065, 2001917491, 2859882130, 4003834982, 10009587455, 20019174910]

約数ペア:

[(1, 20019174910), (2, 10009587455), (5, 4003834982), (7, 2859882130), (10, 2001917491), (14, 1429941065), (35, 571976426), (49, 408554590), (70, 285988213), (71, 281960210), (98, 204277295), (142, 140980105), (245, 81710918), (355, 56392042), (490, 40855459), (497, 40280030), (710, 28196021), (994, 20140015), (2485, 8056006), (3479, 5754290), (4970, 4028003), (6958, 2877145), (17395, 1150858), (34790, 575429)]