30877720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7643}}^1$

素因数の和:7755

約数の個数: 32

約数和(自身を含む): 70171920

約数和(自身を除く): 39294200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 7643, 15286, 30572, 38215, 61144, 76430, 152860, 305720, 771943, 1543886, 3087772, 3859715, 6175544, 7719430, 15438860, 30877720]

約数ペア:

[(1, 30877720), (2, 15438860), (4, 7719430), (5, 6175544), (8, 3859715), (10, 3087772), (20, 1543886), (40, 771943), (101, 305720), (202, 152860), (404, 76430), (505, 61144), (808, 38215), (1010, 30572), (2020, 15286), (4040, 7643)]