243578660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21787}}^1$

素因数の和:21852

約数の個数: 48

約数和(自身を含む): 563699136

約数和(自身を除く): 320120476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 21787, 43574, 87148, 108935, 217870, 283231, 435740, 566462, 936841, 1132924, 1416155, 1873682, 2832310, 3747364, 4684205, 5664620, 9368410, 12178933, 18736820, 24357866, 48715732, 60894665, 121789330, 243578660]

約数ペア:

[(1, 243578660), (2, 121789330), (4, 60894665), (5, 48715732), (10, 24357866), (13, 18736820), (20, 12178933), (26, 9368410), (43, 5664620), (52, 4684205), (65, 3747364), (86, 2832310), (130, 1873682), (172, 1416155), (215, 1132924), (260, 936841), (430, 566462), (559, 435740), (860, 283231), (1118, 217870), (2236, 108935), (2795, 87148), (5590, 43574), (11180, 21787)]