20477955165

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{311}}^1\times {\mathrm{661}}^1$

素因数の和:1238

約数の個数: 64

約数和(自身を含む): 34203686400

約数和(自身を除く): 13725731235

約数列:

[1, 3, 5, 15, 29, 87, 145, 229, 311, 435, 661, 687, 933, 1145, 1555, 1983, 3305, 3435, 4665, 6641, 9019, 9915, 19169, 19923, 27057, 33205, 45095, 57507, 71219, 95845, 99615, 135285, 151369, 205571, 213657, 287535, 356095, 454107, 616713, 756845, 1027855, 1068285, 2065351, 2270535, 3083565, 4389701, 5961559, 6196053, 10326755, 13169103, 17884677, 21948505, 29807795, 30980265, 47075759, 65845515, 89423385, 141227277, 235378795, 706136385, 1365197011, 4095591033, 6825985055, 20477955165]

約数ペア:

[(1, 20477955165), (3, 6825985055), (5, 4095591033), (15, 1365197011), (29, 706136385), (87, 235378795), (145, 141227277), (229, 89423385), (311, 65845515), (435, 47075759), (661, 30980265), (687, 29807795), (933, 21948505), (1145, 17884677), (1555, 13169103), (1983, 10326755), (3305, 6196053), (3435, 5961559), (4665, 4389701), (6641, 3083565), (9019, 2270535), (9915, 2065351), (19169, 1068285), (19923, 1027855), (27057, 756845), (33205, 616713), (45095, 454107), (57507, 356095), (71219, 287535), (95845, 213657), (99615, 205571), (135285, 151369)]