201312215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^2$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 290703168

約数和(自身を除く): 89390953

約数列:

[1, 5, 13, 17, 23, 65, 85, 89, 115, 221, 299, 391, 445, 1105, 1157, 1495, 1513, 1955, 2047, 5083, 5785, 7565, 7921, 10235, 19669, 25415, 26611, 34799, 39605, 98345, 102973, 133055, 134657, 173995, 182183, 452387, 514865, 673285, 910915, 1750541, 2261935, 2368379, 3097111, 8752705, 11841895, 15485555, 40262443, 201312215]

約数ペア:

[(1, 201312215), (5, 40262443), (13, 15485555), (17, 11841895), (23, 8752705), (65, 3097111), (85, 2368379), (89, 2261935), (115, 1750541), (221, 910915), (299, 673285), (391, 514865), (445, 452387), (1105, 182183), (1157, 173995), (1495, 134657), (1513, 133055), (1955, 102973), (2047, 98345), (5083, 39605), (5785, 34799), (7565, 26611), (7921, 25415), (10235, 19669)]