251039805

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{13421}}^1$

素因数の和:13501

約数の個数: 32

約数和(自身を含む): 425208960

約数和(自身を除く): 174169155

約数列:

[1, 3, 5, 15, 29, 43, 87, 129, 145, 215, 435, 645, 1247, 3741, 6235, 13421, 18705, 40263, 67105, 201315, 389209, 577103, 1167627, 1731309, 1946045, 2885515, 5838135, 8656545, 16735987, 50207961, 83679935, 251039805]

約数ペア:

[(1, 251039805), (3, 83679935), (5, 50207961), (15, 16735987), (29, 8656545), (43, 5838135), (87, 2885515), (129, 1946045), (145, 1731309), (215, 1167627), (435, 577103), (645, 389209), (1247, 201315), (3741, 67105), (6235, 40263), (13421, 18705)]