28245680

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{797}}^1$

素因数の和:1253

約数の個数: 40

約数和(自身を含む): 65902032

約数和(自身を除く): 37656352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 797, 886, 1594, 1772, 2215, 3188, 3544, 3985, 4430, 6376, 7088, 7970, 8860, 12752, 15940, 17720, 31880, 35440, 63760, 353071, 706142, 1412284, 1765355, 2824568, 3530710, 5649136, 7061420, 14122840, 28245680]

約数ペア:

[(1, 28245680), (2, 14122840), (4, 7061420), (5, 5649136), (8, 3530710), (10, 2824568), (16, 1765355), (20, 1412284), (40, 706142), (80, 353071), (443, 63760), (797, 35440), (886, 31880), (1594, 17720), (1772, 15940), (2215, 12752), (3188, 8860), (3544, 7970), (3985, 7088), (4430, 6376)]