400480

素因数分解:

$2^5\times 5^1\times {\mathrm{2503}}^1$

素因数の和:2518

約数の個数: 24

約数和(自身を含む): 946512

約数和(自身を除く): 546032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2503, 5006, 10012, 12515, 20024, 25030, 40048, 50060, 80096, 100120, 200240, 400480]

約数ペア:

[(1, 400480), (2, 200240), (4, 100120), (5, 80096), (8, 50060), (10, 40048), (16, 25030), (20, 20024), (32, 12515), (40, 10012), (80, 5006), (160, 2503)]