31335980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 72801792

約数和(自身を除く): 41465812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 127, 130, 146, 169, 254, 260, 292, 338, 365, 508, 635, 676, 730, 845, 949, 1270, 1460, 1651, 1690, 1898, 2540, 3302, 3380, 3796, 4745, 6604, 8255, 9271, 9490, 12337, 16510, 18542, 18980, 21463, 24674, 33020, 37084, 42926, 46355, 49348, 61685, 85852, 92710, 107315, 120523, 123370, 185420, 214630, 241046, 246740, 429260, 482092, 602615, 1205230, 1566799, 2410460, 3133598, 6267196, 7833995, 15667990, 31335980]

約数ペア:

[(1, 31335980), (2, 15667990), (4, 7833995), (5, 6267196), (10, 3133598), (13, 2410460), (20, 1566799), (26, 1205230), (52, 602615), (65, 482092), (73, 429260), (127, 246740), (130, 241046), (146, 214630), (169, 185420), (254, 123370), (260, 120523), (292, 107315), (338, 92710), (365, 85852), (508, 61685), (635, 49348), (676, 46355), (730, 42926), (845, 37084), (949, 33020), (1270, 24674), (1460, 21463), (1651, 18980), (1690, 18542), (1898, 16510), (2540, 12337), (3302, 9490), (3380, 9271), (3796, 8255), (4745, 6604)]