1243775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 1718640

約数和(自身を除く): 474865

約数列:

[1, 5, 13, 25, 43, 65, 89, 215, 325, 445, 559, 1075, 1157, 2225, 2795, 3827, 5785, 13975, 19135, 28925, 49751, 95675, 248755, 1243775]

約数ペア:

[(1, 1243775), (5, 248755), (13, 95675), (25, 49751), (43, 28925), (65, 19135), (89, 13975), (215, 5785), (325, 3827), (445, 2795), (559, 2225), (1075, 1157)]