212300920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{408271}}^1$

素因数の和:408295

約数の個数: 32

約数和(自身を含む): 514422720

約数和(自身を除く): 302121800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 408271, 816542, 1633084, 2041355, 3266168, 4082710, 5307523, 8165420, 10615046, 16330840, 21230092, 26537615, 42460184, 53075230, 106150460, 212300920]

約数ペア:

[(1, 212300920), (2, 106150460), (4, 53075230), (5, 42460184), (8, 26537615), (10, 21230092), (13, 16330840), (20, 10615046), (26, 8165420), (40, 5307523), (52, 4082710), (65, 3266168), (104, 2041355), (130, 1633084), (260, 816542), (520, 408271)]