20538390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1907}}^1$

素因数の和:2276

約数の個数: 32

約数和(自身を含む): 49455360

約数和(自身を除く): 28916970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 359, 718, 1077, 1795, 1907, 2154, 3590, 3814, 5385, 5721, 9535, 10770, 11442, 19070, 28605, 57210, 684613, 1369226, 2053839, 3423065, 4107678, 6846130, 10269195, 20538390]

約数ペア:

[(1, 20538390), (2, 10269195), (3, 6846130), (5, 4107678), (6, 3423065), (10, 2053839), (15, 1369226), (30, 684613), (359, 57210), (718, 28605), (1077, 19070), (1795, 11442), (1907, 10770), (2154, 9535), (3590, 5721), (3814, 5385)]