289432960

素因数分解:

$2^7\times 5^1\times {\mathrm{452239}}^1$

素因数の和:452258

約数の個数: 32

約数和(自身を含む): 691927200

約数和(自身を除く): 402494240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 452239, 904478, 1808956, 2261195, 3617912, 4522390, 7235824, 9044780, 14471648, 18089560, 28943296, 36179120, 57886592, 72358240, 144716480, 289432960]

約数ペア:

[(1, 289432960), (2, 144716480), (4, 72358240), (5, 57886592), (8, 36179120), (10, 28943296), (16, 18089560), (20, 14471648), (32, 9044780), (40, 7235824), (64, 4522390), (80, 3617912), (128, 2261195), (160, 1808956), (320, 904478), (640, 452239)]