1819272320

素因数分解:

$2^7\times 5^1\times {\mathrm{137}}^1\times {\mathrm{20749}}^1$

素因数の和:20905

約数の個数: 64

約数和(自身を含む): 4381155000

約数和(自身を除く): 2561882680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 274, 320, 548, 640, 685, 1096, 1370, 2192, 2740, 4384, 5480, 8768, 10960, 17536, 20749, 21920, 41498, 43840, 82996, 87680, 103745, 165992, 207490, 331984, 414980, 663968, 829960, 1327936, 1659920, 2655872, 2842613, 3319840, 5685226, 6639680, 11370452, 13279360, 14213065, 22740904, 28426130, 45481808, 56852260, 90963616, 113704520, 181927232, 227409040, 363854464, 454818080, 909636160, 1819272320]

約数ペア:

[(1, 1819272320), (2, 909636160), (4, 454818080), (5, 363854464), (8, 227409040), (10, 181927232), (16, 113704520), (20, 90963616), (32, 56852260), (40, 45481808), (64, 28426130), (80, 22740904), (128, 14213065), (137, 13279360), (160, 11370452), (274, 6639680), (320, 5685226), (548, 3319840), (640, 2842613), (685, 2655872), (1096, 1659920), (1370, 1327936), (2192, 829960), (2740, 663968), (4384, 414980), (5480, 331984), (8768, 207490), (10960, 165992), (17536, 103745), (20749, 87680), (21920, 82996), (41498, 43840)]