209808180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{27107}}^1$

素因数の和:27165

約数の個数: 72

約数和(自身を含む): 651242592

約数和(自身を除く): 441434412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 27107, 54214, 81321, 108428, 135535, 162642, 243963, 271070, 325284, 406605, 487926, 542140, 813210, 975852, 1165601, 1219815, 1626420, 2331202, 2439630, 3496803, 4662404, 4879260, 5828005, 6993606, 10490409, 11656010, 13987212, 17484015, 20980818, 23312020, 34968030, 41961636, 52452045, 69936060, 104904090, 209808180]

約数ペア:

[(1, 209808180), (2, 104904090), (3, 69936060), (4, 52452045), (5, 41961636), (6, 34968030), (9, 23312020), (10, 20980818), (12, 17484015), (15, 13987212), (18, 11656010), (20, 10490409), (30, 6993606), (36, 5828005), (43, 4879260), (45, 4662404), (60, 3496803), (86, 2439630), (90, 2331202), (129, 1626420), (172, 1219815), (180, 1165601), (215, 975852), (258, 813210), (387, 542140), (430, 487926), (516, 406605), (645, 325284), (774, 271070), (860, 243963), (1290, 162642), (1548, 135535), (1935, 108428), (2580, 81321), (3870, 54214), (7740, 27107)]