16519960

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1607}}^1$

素因数の和:1875

約数の個数: 32

約数和(自身を含む): 37337760

約数和(自身を除く): 20817800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1607, 2056, 2570, 3214, 5140, 6428, 8035, 10280, 12856, 16070, 32140, 64280, 412999, 825998, 1651996, 2064995, 3303992, 4129990, 8259980, 16519960]

約数ペア:

[(1, 16519960), (2, 8259980), (4, 4129990), (5, 3303992), (8, 2064995), (10, 1651996), (20, 825998), (40, 412999), (257, 64280), (514, 32140), (1028, 16070), (1285, 12856), (1607, 10280), (2056, 8035), (2570, 6428), (3214, 5140)]