817180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 2116800

約数和(自身を除く): 1299620

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 449, 455, 898, 910, 1796, 1820, 2245, 3143, 4490, 5837, 6286, 8980, 11674, 12572, 15715, 23348, 29185, 31430, 40859, 58370, 62860, 81718, 116740, 163436, 204295, 408590, 817180]

約数ペア:

[(1, 817180), (2, 408590), (4, 204295), (5, 163436), (7, 116740), (10, 81718), (13, 62860), (14, 58370), (20, 40859), (26, 31430), (28, 29185), (35, 23348), (52, 15715), (65, 12572), (70, 11674), (91, 8980), (130, 6286), (140, 5837), (182, 4490), (260, 3143), (364, 2245), (449, 1820), (455, 1796), (898, 910)]