130128400

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{3221}}^1$

素因数の和:3340

約数の個数: 60

約数和(自身を含む): 315826884

約数和(自身を除く): 185698484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 2020, 2525, 3221, 4040, 5050, 6442, 8080, 10100, 12884, 16105, 20200, 25768, 32210, 40400, 51536, 64420, 80525, 128840, 161050, 257680, 322100, 325321, 644200, 650642, 1288400, 1301284, 1626605, 2602568, 3253210, 5205136, 6506420, 8133025, 13012840, 16266050, 26025680, 32532100, 65064200, 130128400]

約数ペア:

[(1, 130128400), (2, 65064200), (4, 32532100), (5, 26025680), (8, 16266050), (10, 13012840), (16, 8133025), (20, 6506420), (25, 5205136), (40, 3253210), (50, 2602568), (80, 1626605), (100, 1301284), (101, 1288400), (200, 650642), (202, 644200), (400, 325321), (404, 322100), (505, 257680), (808, 161050), (1010, 128840), (1616, 80525), (2020, 64420), (2525, 51536), (3221, 40400), (4040, 32210), (5050, 25768), (6442, 20200), (8080, 16105), (10100, 12884)]