90997120

素因数分解:

$2^7\times 5^1\times {\mathrm{142183}}^1$

素因数の和:142202

約数の個数: 32

約数和(自身を含む): 217541520

約数和(自身を除く): 126544400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 142183, 284366, 568732, 710915, 1137464, 1421830, 2274928, 2843660, 4549856, 5687320, 9099712, 11374640, 18199424, 22749280, 45498560, 90997120]

約数ペア:

[(1, 90997120), (2, 45498560), (4, 22749280), (5, 18199424), (8, 11374640), (10, 9099712), (16, 5687320), (20, 4549856), (32, 2843660), (40, 2274928), (64, 1421830), (80, 1137464), (128, 710915), (160, 568732), (320, 284366), (640, 142183)]