25760560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 69120576

約数和(自身を除く): 43360016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 293, 314, 560, 586, 628, 785, 1099, 1172, 1256, 1465, 1570, 2051, 2198, 2344, 2512, 2930, 3140, 4102, 4396, 4688, 5495, 5860, 6280, 8204, 8792, 10255, 10990, 11720, 12560, 16408, 17584, 20510, 21980, 23440, 32816, 41020, 43960, 46001, 82040, 87920, 92002, 164080, 184004, 230005, 322007, 368008, 460010, 644014, 736016, 920020, 1288028, 1610035, 1840040, 2576056, 3220070, 3680080, 5152112, 6440140, 12880280, 25760560]

約数ペア:

[(1, 25760560), (2, 12880280), (4, 6440140), (5, 5152112), (7, 3680080), (8, 3220070), (10, 2576056), (14, 1840040), (16, 1610035), (20, 1288028), (28, 920020), (35, 736016), (40, 644014), (56, 460010), (70, 368008), (80, 322007), (112, 230005), (140, 184004), (157, 164080), (280, 92002), (293, 87920), (314, 82040), (560, 46001), (586, 43960), (628, 41020), (785, 32816), (1099, 23440), (1172, 21980), (1256, 20510), (1465, 17584), (1570, 16408), (2051, 12560), (2198, 11720), (2344, 10990), (2512, 10255), (2930, 8792), (3140, 8204), (4102, 6280), (4396, 5860), (4688, 5495)]