251282060

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{1579}}^1$

素因数の和:1770

約数の個数: 48

約数和(自身を含む): 540170400

約数和(自身を除く): 288888340

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 365, 436, 545, 730, 1090, 1460, 1579, 2180, 3158, 6316, 7895, 7957, 15790, 15914, 31580, 31828, 39785, 79570, 115267, 159140, 172111, 230534, 344222, 461068, 576335, 688444, 860555, 1152670, 1721110, 2305340, 3442220, 12564103, 25128206, 50256412, 62820515, 125641030, 251282060]

約数ペア:

[(1, 251282060), (2, 125641030), (4, 62820515), (5, 50256412), (10, 25128206), (20, 12564103), (73, 3442220), (109, 2305340), (146, 1721110), (218, 1152670), (292, 860555), (365, 688444), (436, 576335), (545, 461068), (730, 344222), (1090, 230534), (1460, 172111), (1579, 159140), (2180, 115267), (3158, 79570), (6316, 39785), (7895, 31828), (7957, 31580), (15790, 15914)]