289904360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{102079}}^1$

素因数の和:102161

約数の個数: 32

約数和(自身を含む): 661478400

約数和(自身を除く): 371574040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 102079, 204158, 408316, 510395, 816632, 1020790, 2041580, 4083160, 7247609, 14495218, 28990436, 36238045, 57980872, 72476090, 144952180, 289904360]

約数ペア:

[(1, 289904360), (2, 144952180), (4, 72476090), (5, 57980872), (8, 36238045), (10, 28990436), (20, 14495218), (40, 7247609), (71, 4083160), (142, 2041580), (284, 1020790), (355, 816632), (568, 510395), (710, 408316), (1420, 204158), (2840, 102079)]