204048780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{261601}}^1$

素因数の和:261626

約数の個数: 48

約数和(自身を含む): 615287904

約数和(自身を除く): 411239124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 261601, 523202, 784803, 1046404, 1308005, 1569606, 2616010, 3139212, 3400813, 3924015, 5232020, 6801626, 7848030, 10202439, 13603252, 15696060, 17004065, 20404878, 34008130, 40809756, 51012195, 68016260, 102024390, 204048780]

約数ペア:

[(1, 204048780), (2, 102024390), (3, 68016260), (4, 51012195), (5, 40809756), (6, 34008130), (10, 20404878), (12, 17004065), (13, 15696060), (15, 13603252), (20, 10202439), (26, 7848030), (30, 6801626), (39, 5232020), (52, 3924015), (60, 3400813), (65, 3139212), (78, 2616010), (130, 1569606), (156, 1308005), (195, 1046404), (260, 784803), (390, 523202), (780, 261601)]