42456865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{7643}}^1$

素因数の和:7760

約数の個数: 16

約数和(自身を含む): 56137536

約数和(自身を除く): 13680671

約数列:

[1, 5, 11, 55, 101, 505, 1111, 5555, 7643, 38215, 84073, 420365, 771943, 3859715, 8491373, 42456865]

約数ペア:

[(1, 42456865), (5, 8491373), (11, 3859715), (55, 771943), (101, 420365), (505, 84073), (1111, 38215), (5555, 7643)]