20266635

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17058165

約数列:

[1, 3, 5, 15, 17, 19, 47, 51, 57, 85, 89, 95, 141, 235, 255, 267, 285, 323, 445, 705, 799, 893, 969, 1335, 1513, 1615, 1691, 2397, 2679, 3995, 4183, 4465, 4539, 4845, 5073, 7565, 8455, 11985, 12549, 13395, 15181, 20915, 22695, 25365, 28747, 45543, 62745, 71111, 75905, 79477, 86241, 143735, 213333, 227715, 238431, 355555, 397385, 431205, 1066665, 1192155, 1351109, 4053327, 6755545, 20266635]

約数ペア:

[(1, 20266635), (3, 6755545), (5, 4053327), (15, 1351109), (17, 1192155), (19, 1066665), (47, 431205), (51, 397385), (57, 355555), (85, 238431), (89, 227715), (95, 213333), (141, 143735), (235, 86241), (255, 79477), (267, 75905), (285, 71111), (323, 62745), (445, 45543), (705, 28747), (799, 25365), (893, 22695), (969, 20915), (1335, 15181), (1513, 13395), (1615, 12549), (1691, 11985), (2397, 8455), (2679, 7565), (3995, 5073), (4183, 4845), (4465, 4539)]