82684400

素因数分解:

$2^4\times 5^2\times {\mathrm{421}}^1\times {\mathrm{491}}^1$

素因数の和:930

約数の個数: 60

約数和(自身を含む): 199526664

約数和(自身を除く): 116842264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 421, 491, 842, 982, 1684, 1964, 2105, 2455, 3368, 3928, 4210, 4910, 6736, 7856, 8420, 9820, 10525, 12275, 16840, 19640, 21050, 24550, 33680, 39280, 42100, 49100, 84200, 98200, 168400, 196400, 206711, 413422, 826844, 1033555, 1653688, 2067110, 3307376, 4134220, 5167775, 8268440, 10335550, 16536880, 20671100, 41342200, 82684400]

約数ペア:

[(1, 82684400), (2, 41342200), (4, 20671100), (5, 16536880), (8, 10335550), (10, 8268440), (16, 5167775), (20, 4134220), (25, 3307376), (40, 2067110), (50, 1653688), (80, 1033555), (100, 826844), (200, 413422), (400, 206711), (421, 196400), (491, 168400), (842, 98200), (982, 84200), (1684, 49100), (1964, 42100), (2105, 39280), (2455, 33680), (3368, 24550), (3928, 21050), (4210, 19640), (4910, 16840), (6736, 12275), (7856, 10525), (8420, 9820)]