28031680

素因数分解:

$2^6\times 5^1\times {\mathrm{251}}^1\times {\mathrm{349}}^1$

素因数の和:617

約数の個数: 56

約数和(自身を含む): 67208400

約数和(自身を除く): 39176720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 251, 320, 349, 502, 698, 1004, 1255, 1396, 1745, 2008, 2510, 2792, 3490, 4016, 5020, 5584, 6980, 8032, 10040, 11168, 13960, 16064, 20080, 22336, 27920, 40160, 55840, 80320, 87599, 111680, 175198, 350396, 437995, 700792, 875990, 1401584, 1751980, 2803168, 3503960, 5606336, 7007920, 14015840, 28031680]

約数ペア:

[(1, 28031680), (2, 14015840), (4, 7007920), (5, 5606336), (8, 3503960), (10, 2803168), (16, 1751980), (20, 1401584), (32, 875990), (40, 700792), (64, 437995), (80, 350396), (160, 175198), (251, 111680), (320, 87599), (349, 80320), (502, 55840), (698, 40160), (1004, 27920), (1255, 22336), (1396, 20080), (1745, 16064), (2008, 13960), (2510, 11168), (2792, 10040), (3490, 8032), (4016, 6980), (5020, 5584)]