2028339580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{4723}}^1$

素因数の和:5038

約数の個数: 48

約数和(自身を含む): 4321326240

約数和(自身を除く): 2292986660

約数列:

[1, 2, 4, 5, 10, 20, 109, 197, 218, 394, 436, 545, 788, 985, 1090, 1970, 2180, 3940, 4723, 9446, 18892, 21473, 23615, 42946, 47230, 85892, 94460, 107365, 214730, 429460, 514807, 930431, 1029614, 1860862, 2059228, 2574035, 3721724, 4652155, 5148070, 9304310, 10296140, 18608620, 101416979, 202833958, 405667916, 507084895, 1014169790, 2028339580]

約数ペア:

[(1, 2028339580), (2, 1014169790), (4, 507084895), (5, 405667916), (10, 202833958), (20, 101416979), (109, 18608620), (197, 10296140), (218, 9304310), (394, 5148070), (436, 4652155), (545, 3721724), (788, 2574035), (985, 2059228), (1090, 1860862), (1970, 1029614), (2180, 930431), (3940, 514807), (4723, 429460), (9446, 214730), (18892, 107365), (21473, 94460), (23615, 85892), (42946, 47230)]