664999340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{455479}}^1$

素因数の和:455561

約数の個数: 24

約数和(自身を含む): 1415631840

約数和(自身を除く): 750632500

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 455479, 910958, 1821916, 2277395, 4554790, 9109580, 33249967, 66499934, 132999868, 166249835, 332499670, 664999340]

約数ペア:

[(1, 664999340), (2, 332499670), (4, 166249835), (5, 132999868), (10, 66499934), (20, 33249967), (73, 9109580), (146, 4554790), (292, 2277395), (365, 1821916), (730, 910958), (1460, 455479)]