1288925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 1800480

約数和(自身を除く): 511555

約数列:

[1, 5, 11, 25, 43, 55, 109, 215, 275, 473, 545, 1075, 1199, 2365, 2725, 4687, 5995, 11825, 23435, 29975, 51557, 117175, 257785, 1288925]

約数ペア:

[(1, 1288925), (5, 257785), (11, 117175), (25, 51557), (43, 29975), (55, 23435), (109, 11825), (215, 5995), (275, 4687), (473, 2725), (545, 2365), (1075, 1199)]