28540460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3594

約数の個数: 48

約数和(自身を含む): 66646272

約数和(自身を除く): 38105812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3541, 4030, 7082, 8060, 14164, 17705, 35410, 46033, 70820, 92066, 109771, 184132, 219542, 230165, 439084, 460330, 548855, 920660, 1097710, 1427023, 2195420, 2854046, 5708092, 7135115, 14270230, 28540460]

約数ペア:

[(1, 28540460), (2, 14270230), (4, 7135115), (5, 5708092), (10, 2854046), (13, 2195420), (20, 1427023), (26, 1097710), (31, 920660), (52, 548855), (62, 460330), (65, 439084), (124, 230165), (130, 219542), (155, 184132), (260, 109771), (310, 92066), (403, 70820), (620, 46033), (806, 35410), (1612, 17705), (2015, 14164), (3541, 8060), (4030, 7082)]