396945280

素因数分解:

$2^7\times 5^1\times {\mathrm{620227}}^1$

素因数の和:620246

約数の個数: 32

約数和(自身を含む): 948948840

約数和(自身を除く): 552003560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 620227, 1240454, 2480908, 3101135, 4961816, 6202270, 9923632, 12404540, 19847264, 24809080, 39694528, 49618160, 79389056, 99236320, 198472640, 396945280]

約数ペア:

[(1, 396945280), (2, 198472640), (4, 99236320), (5, 79389056), (8, 49618160), (10, 39694528), (16, 24809080), (20, 19847264), (32, 12404540), (40, 9923632), (64, 6202270), (80, 4961816), (128, 3101135), (160, 2480908), (320, 1240454), (640, 620227)]