40478672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{194609}}^1$

素因数の和:194630

約数の個数: 20

約数和(自身を含む): 84460740

約数和(自身を除く): 43982068

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 194609, 389218, 778436, 1556872, 2529917, 3113744, 5059834, 10119668, 20239336, 40478672]

約数ペア:

[(1, 40478672), (2, 20239336), (4, 10119668), (8, 5059834), (13, 3113744), (16, 2529917), (26, 1556872), (52, 778436), (104, 389218), (208, 194609)]