215125345

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 274982400

約数和(自身を除く): 59857055

約数列:

[1, 5, 43, 47, 61, 215, 235, 305, 349, 1745, 2021, 2623, 2867, 10105, 13115, 14335, 15007, 16403, 21289, 75035, 82015, 106445, 123281, 616405, 705329, 915427, 1000583, 3526645, 4577135, 5002915, 43025069, 215125345]

約数ペア:

[(1, 215125345), (5, 43025069), (43, 5002915), (47, 4577135), (61, 3526645), (215, 1000583), (235, 915427), (305, 705329), (349, 616405), (1745, 123281), (2021, 106445), (2623, 82015), (2867, 75035), (10105, 21289), (13115, 16403), (14335, 15007)]