151720985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2857}}^1$

素因数の和:2937

約数の個数: 32

約数和(自身を含む): 211263360

約数和(自身を除く): 59542375

約数列:

[1, 5, 13, 19, 43, 65, 95, 215, 247, 559, 817, 1235, 2795, 2857, 4085, 10621, 14285, 37141, 53105, 54283, 122851, 185705, 271415, 614255, 705679, 1597063, 2334169, 3528395, 7985315, 11670845, 30344197, 151720985]

約数ペア:

[(1, 151720985), (5, 30344197), (13, 11670845), (19, 7985315), (43, 3528395), (65, 2334169), (95, 1597063), (215, 705679), (247, 614255), (559, 271415), (817, 185705), (1235, 122851), (2795, 54283), (2857, 53105), (4085, 37141), (10621, 14285)]