81849950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17989}}^1$

素因数の和:18021

約数の個数: 48

約数和(自身を含む): 187383840

約数和(自身を除く): 105533890

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 17989, 35978, 89945, 125923, 179890, 233857, 251846, 449725, 467714, 629615, 899450, 1169285, 1259230, 1636999, 2338570, 3148075, 3273998, 5846425, 6296150, 8184995, 11692850, 16369990, 40924975, 81849950]

約数ペア:

[(1, 81849950), (2, 40924975), (5, 16369990), (7, 11692850), (10, 8184995), (13, 6296150), (14, 5846425), (25, 3273998), (26, 3148075), (35, 2338570), (50, 1636999), (65, 1259230), (70, 1169285), (91, 899450), (130, 629615), (175, 467714), (182, 449725), (325, 251846), (350, 233857), (455, 179890), (650, 125923), (910, 89945), (2275, 35978), (4550, 17989)]