161008520

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{5981}}^1$

素因数の和:6665

約数の個数: 32

約数和(自身を含む): 362868120

約数和(自身を除く): 201859600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 1346, 2692, 3365, 5384, 5981, 6730, 11962, 13460, 23924, 26920, 29905, 47848, 59810, 119620, 239240, 4025213, 8050426, 16100852, 20126065, 32201704, 40252130, 80504260, 161008520]

約数ペア:

[(1, 161008520), (2, 80504260), (4, 40252130), (5, 32201704), (8, 20126065), (10, 16100852), (20, 8050426), (40, 4025213), (673, 239240), (1346, 119620), (2692, 59810), (3365, 47848), (5384, 29905), (5981, 26920), (6730, 23924), (11962, 13460)]