8398240

素因数分解:

$2^5\times 5^1\times {\mathrm{52489}}^1$

素因数の和:52504

約数の個数: 24

約数和(自身を含む): 19841220

約数和(自身を除く): 11442980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 52489, 104978, 209956, 262445, 419912, 524890, 839824, 1049780, 1679648, 2099560, 4199120, 8398240]

約数ペア:

[(1, 8398240), (2, 4199120), (4, 2099560), (5, 1679648), (8, 1049780), (10, 839824), (16, 524890), (20, 419912), (32, 262445), (40, 209956), (80, 104978), (160, 52489)]