81000605

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{503}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 114960384

約数和(自身を除く): 33959779

約数列:

[1, 5, 7, 35, 43, 107, 215, 301, 503, 535, 749, 1505, 2515, 3521, 3745, 4601, 17605, 21629, 23005, 32207, 53821, 108145, 151403, 161035, 269105, 376747, 757015, 1883735, 2314303, 11571515, 16200121, 81000605]

約数ペア:

[(1, 81000605), (5, 16200121), (7, 11571515), (35, 2314303), (43, 1883735), (107, 757015), (215, 376747), (301, 269105), (503, 161035), (535, 151403), (749, 108145), (1505, 53821), (2515, 32207), (3521, 23005), (3745, 21629), (4601, 17605)]