19020190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 22037090

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 71, 86, 89, 142, 178, 215, 301, 355, 430, 445, 497, 602, 623, 710, 890, 994, 1246, 1505, 2485, 3010, 3053, 3115, 3827, 4970, 6106, 6230, 6319, 7654, 12638, 15265, 19135, 21371, 26789, 30530, 31595, 38270, 42742, 44233, 53578, 63190, 88466, 106855, 133945, 213710, 221165, 267890, 271717, 442330, 543434, 1358585, 1902019, 2717170, 3804038, 9510095, 19020190]

約数ペア:

[(1, 19020190), (2, 9510095), (5, 3804038), (7, 2717170), (10, 1902019), (14, 1358585), (35, 543434), (43, 442330), (70, 271717), (71, 267890), (86, 221165), (89, 213710), (142, 133945), (178, 106855), (215, 88466), (301, 63190), (355, 53578), (430, 44233), (445, 42742), (497, 38270), (602, 31595), (623, 30530), (710, 26789), (890, 21371), (994, 19135), (1246, 15265), (1505, 12638), (2485, 7654), (3010, 6319), (3053, 6230), (3115, 6106), (3827, 4970)]