17892620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 39711168

約数和(自身を除く): 21818548

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 388, 401, 460, 485, 802, 970, 1604, 1940, 2005, 2231, 4010, 4462, 8020, 8924, 9223, 11155, 18446, 22310, 36892, 38897, 44620, 46115, 77794, 92230, 155588, 184460, 194485, 388970, 777940, 894631, 1789262, 3578524, 4473155, 8946310, 17892620]

約数ペア:

[(1, 17892620), (2, 8946310), (4, 4473155), (5, 3578524), (10, 1789262), (20, 894631), (23, 777940), (46, 388970), (92, 194485), (97, 184460), (115, 155588), (194, 92230), (230, 77794), (388, 46115), (401, 44620), (460, 38897), (485, 36892), (802, 22310), (970, 18446), (1604, 11155), (1940, 9223), (2005, 8924), (2231, 8020), (4010, 4462)]