20401120

素因数分解:

$2^5\times 5^1\times {\mathrm{127507}}^1$

素因数の和:127522

約数の個数: 24

約数和(自身を含む): 48198024

約数和(自身を除く): 27796904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127507, 255014, 510028, 637535, 1020056, 1275070, 2040112, 2550140, 4080224, 5100280, 10200560, 20401120]

約数ペア:

[(1, 20401120), (2, 10200560), (4, 5100280), (5, 4080224), (8, 2550140), (10, 2040112), (16, 1275070), (20, 1020056), (32, 637535), (40, 510028), (80, 255014), (160, 127507)]