2541980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 6214656

約数和(自身を除く): 3672676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 271, 335, 469, 542, 670, 938, 1084, 1340, 1355, 1876, 1897, 2345, 2710, 3794, 4690, 5420, 7588, 9380, 9485, 18157, 18970, 36314, 37940, 72628, 90785, 127099, 181570, 254198, 363140, 508396, 635495, 1270990, 2541980]

約数ペア:

[(1, 2541980), (2, 1270990), (4, 635495), (5, 508396), (7, 363140), (10, 254198), (14, 181570), (20, 127099), (28, 90785), (35, 72628), (67, 37940), (70, 36314), (134, 18970), (140, 18157), (268, 9485), (271, 9380), (335, 7588), (469, 5420), (542, 4690), (670, 3794), (938, 2710), (1084, 2345), (1340, 1897), (1355, 1876)]