4070147240

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{199909}}^1$

素因数の和:200429

約数の個数: 32

約数和(自身を含む): 9175869000

約数和(自身を除く): 5105721760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 199909, 399818, 799636, 999545, 1599272, 1999090, 3998180, 7996360, 101753681, 203507362, 407014724, 508768405, 814029448, 1017536810, 2035073620, 4070147240]

約数ペア:

[(1, 4070147240), (2, 2035073620), (4, 1017536810), (5, 814029448), (8, 508768405), (10, 407014724), (20, 203507362), (40, 101753681), (509, 7996360), (1018, 3998180), (2036, 1999090), (2545, 1599272), (4072, 999545), (5090, 799636), (10180, 399818), (20360, 199909)]