67679960

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4019}}^1$

素因数の和:4451

約数の個数: 32

約数和(自身を含む): 152679600

約数和(自身を除く): 84999640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4019, 4210, 8038, 8420, 16076, 16840, 20095, 32152, 40190, 80380, 160760, 1691999, 3383998, 6767996, 8459995, 13535992, 16919990, 33839980, 67679960]

約数ペア:

[(1, 67679960), (2, 33839980), (4, 16919990), (5, 13535992), (8, 8459995), (10, 6767996), (20, 3383998), (40, 1691999), (421, 160760), (842, 80380), (1684, 40190), (2105, 32152), (3368, 20095), (4019, 16840), (4210, 16076), (8038, 8420)]