20512163380

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{787}}^1\times {\mathrm{4111}}^1$

素因数の和:5224

約数の個数: 48

約数和(自身を含む): 43276859136

約数和(自身を除く): 22764695756

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 787, 1268, 1574, 1585, 3148, 3170, 3935, 4111, 6340, 7870, 8222, 15740, 16444, 20555, 41110, 82220, 249479, 498958, 997916, 1247395, 1303187, 2494790, 2606374, 3235357, 4989580, 5212748, 6470714, 6515935, 12941428, 13031870, 16176785, 26063740, 32353570, 64707140, 1025608169, 2051216338, 4102432676, 5128040845, 10256081690, 20512163380]

約数ペア:

[(1, 20512163380), (2, 10256081690), (4, 5128040845), (5, 4102432676), (10, 2051216338), (20, 1025608169), (317, 64707140), (634, 32353570), (787, 26063740), (1268, 16176785), (1574, 13031870), (1585, 12941428), (3148, 6515935), (3170, 6470714), (3935, 5212748), (4111, 4989580), (6340, 3235357), (7870, 2606374), (8222, 2494790), (15740, 1303187), (16444, 1247395), (20555, 997916), (41110, 498958), (82220, 249479)]