219216760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11027}}^1$

素因数の和:11116

約数の個数: 64

約数和(自身を含む): 571691520

約数和(自身を除く): 352474760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 11027, 19880, 22054, 44108, 55135, 77189, 88216, 110270, 154378, 220540, 308756, 385945, 441080, 617512, 771890, 782917, 1543780, 1565834, 3087560, 3131668, 3914585, 5480419, 6263336, 7829170, 10960838, 15658340, 21921676, 27402095, 31316680, 43843352, 54804190, 109608380, 219216760]

約数ペア:

[(1, 219216760), (2, 109608380), (4, 54804190), (5, 43843352), (7, 31316680), (8, 27402095), (10, 21921676), (14, 15658340), (20, 10960838), (28, 7829170), (35, 6263336), (40, 5480419), (56, 3914585), (70, 3131668), (71, 3087560), (140, 1565834), (142, 1543780), (280, 782917), (284, 771890), (355, 617512), (497, 441080), (568, 385945), (710, 308756), (994, 220540), (1420, 154378), (1988, 110270), (2485, 88216), (2840, 77189), (3976, 55135), (4970, 44108), (9940, 22054), (11027, 19880)]