251014820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{25253}}^1$

素因数の和:25340

約数の個数: 48

約数和(自身を含む): 610944768

約数和(自身を除く): 359929948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 25253, 50506, 101012, 126265, 176771, 252530, 353542, 505060, 707084, 883855, 1767710, 1792963, 3535420, 3585926, 7171852, 8964815, 12550741, 17929630, 25101482, 35859260, 50202964, 62753705, 125507410, 251014820]

約数ペア:

[(1, 251014820), (2, 125507410), (4, 62753705), (5, 50202964), (7, 35859260), (10, 25101482), (14, 17929630), (20, 12550741), (28, 8964815), (35, 7171852), (70, 3585926), (71, 3535420), (140, 1792963), (142, 1767710), (284, 883855), (355, 707084), (497, 505060), (710, 353542), (994, 252530), (1420, 176771), (1988, 126265), (2485, 101012), (4970, 50506), (9940, 25253)]