15559120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4523}}^1$

素因数の和:4579

約数の個数: 40

約数和(自身を含む): 37024416

約数和(自身を除く): 21465296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4523, 9046, 18092, 22615, 36184, 45230, 72368, 90460, 180920, 194489, 361840, 388978, 777956, 972445, 1555912, 1944890, 3111824, 3889780, 7779560, 15559120]

約数ペア:

[(1, 15559120), (2, 7779560), (4, 3889780), (5, 3111824), (8, 1944890), (10, 1555912), (16, 972445), (20, 777956), (40, 388978), (43, 361840), (80, 194489), (86, 180920), (172, 90460), (215, 72368), (344, 45230), (430, 36184), (688, 22615), (860, 18092), (1720, 9046), (3440, 4523)]