20091790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1619}}^1$

素因数の和:1716

約数の個数: 32

約数和(自身を含む): 38841120

約数和(自身を除く): 18749330

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1619, 2482, 3238, 6205, 8095, 12410, 16190, 27523, 55046, 118187, 137615, 236374, 275230, 590935, 1181870, 2009179, 4018358, 10045895, 20091790]

約数ペア:

[(1, 20091790), (2, 10045895), (5, 4018358), (10, 2009179), (17, 1181870), (34, 590935), (73, 275230), (85, 236374), (146, 137615), (170, 118187), (365, 55046), (730, 27523), (1241, 16190), (1619, 12410), (2482, 8095), (3238, 6205)]