209320915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1\times {\mathrm{4057}}^1$

素因数の和:4686

約数の個数: 16

約数和(自身を含む): 266464512

約数和(自身を除く): 57143597

約数列:

[1, 5, 17, 85, 607, 3035, 4057, 10319, 20285, 51595, 68969, 344845, 2462599, 12312995, 41864183, 209320915]

約数ペア:

[(1, 209320915), (5, 41864183), (17, 12312995), (85, 2462599), (607, 344845), (3035, 68969), (4057, 51595), (10319, 20285)]