427702990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{857}}^1$

素因数の和:1237

約数の個数: 64

約数和(自身を含む): 908107200

約数和(自身を除く): 480404210

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 349, 698, 715, 857, 1430, 1714, 1745, 3490, 3839, 4285, 4537, 7678, 8570, 9074, 9427, 11141, 18854, 19195, 22282, 22685, 38390, 45370, 47135, 49907, 55705, 94270, 99814, 111410, 122551, 245102, 249535, 299093, 499070, 598186, 612755, 1225510, 1495465, 2990930, 3290023, 3888209, 6580046, 7776418, 16450115, 19441045, 32900230, 38882090, 42770299, 85540598, 213851495, 427702990]

約数ペア:

[(1, 427702990), (2, 213851495), (5, 85540598), (10, 42770299), (11, 38882090), (13, 32900230), (22, 19441045), (26, 16450115), (55, 7776418), (65, 6580046), (110, 3888209), (130, 3290023), (143, 2990930), (286, 1495465), (349, 1225510), (698, 612755), (715, 598186), (857, 499070), (1430, 299093), (1714, 249535), (1745, 245102), (3490, 122551), (3839, 111410), (4285, 99814), (4537, 94270), (7678, 55705), (8570, 49907), (9074, 47135), (9427, 45370), (11141, 38390), (18854, 22685), (19195, 22282)]