2020606420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{197711}}^1$

素因数の和:197800

約数の個数: 48

約数和(自身を含む): 4915911168

約数和(自身を除く): 2895304748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 197711, 395422, 790844, 988555, 1383977, 1977110, 2767954, 3954220, 5535908, 6919885, 13839770, 14432903, 27679540, 28865806, 57731612, 72164515, 101030321, 144329030, 202060642, 288658060, 404121284, 505151605, 1010303210, 2020606420]

約数ペア:

[(1, 2020606420), (2, 1010303210), (4, 505151605), (5, 404121284), (7, 288658060), (10, 202060642), (14, 144329030), (20, 101030321), (28, 72164515), (35, 57731612), (70, 28865806), (73, 27679540), (140, 14432903), (146, 13839770), (292, 6919885), (365, 5535908), (511, 3954220), (730, 2767954), (1022, 1977110), (1460, 1383977), (2044, 988555), (2555, 790844), (5110, 395422), (10220, 197711)]