201512990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{411251}}^1$

素因数の和:411272

約数の個数: 24

約数和(自身を含む): 421944552

約数和(自身を除く): 220431562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 411251, 822502, 2056255, 2878757, 4112510, 5757514, 14393785, 20151299, 28787570, 40302598, 100756495, 201512990]

約数ペア:

[(1, 201512990), (2, 100756495), (5, 40302598), (7, 28787570), (10, 20151299), (14, 14393785), (35, 5757514), (49, 4112510), (70, 2878757), (98, 2056255), (245, 822502), (490, 411251)]