8999960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3169}}^1$

素因数の和:3251

約数の個数: 32

約数和(自身を含む): 20541600

約数和(自身を除く): 11541640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 3169, 6338, 12676, 15845, 25352, 31690, 63380, 126760, 224999, 449998, 899996, 1124995, 1799992, 2249990, 4499980, 8999960]

約数ペア:

[(1, 8999960), (2, 4499980), (4, 2249990), (5, 1799992), (8, 1124995), (10, 899996), (20, 449998), (40, 224999), (71, 126760), (142, 63380), (284, 31690), (355, 25352), (568, 15845), (710, 12676), (1420, 6338), (2840, 3169)]