90859780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1607}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 209091456

約数和(自身を除く): 118231676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 1607, 2570, 2827, 3214, 5140, 5654, 6428, 8035, 11308, 14135, 16070, 17677, 28270, 32140, 35354, 56540, 70708, 88385, 176770, 353540, 412999, 825998, 1651996, 2064995, 4129990, 4542989, 8259980, 9085978, 18171956, 22714945, 45429890, 90859780]

約数ペア:

[(1, 90859780), (2, 45429890), (4, 22714945), (5, 18171956), (10, 9085978), (11, 8259980), (20, 4542989), (22, 4129990), (44, 2064995), (55, 1651996), (110, 825998), (220, 412999), (257, 353540), (514, 176770), (1028, 88385), (1285, 70708), (1607, 56540), (2570, 35354), (2827, 32140), (3214, 28270), (5140, 17677), (5654, 16070), (6428, 14135), (8035, 11308)]