20380816

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 20241584

約数列:

[1, 2, 4, 8, 16, 83, 103, 149, 166, 206, 298, 332, 412, 596, 664, 824, 1192, 1328, 1648, 2384, 8549, 12367, 15347, 17098, 24734, 30694, 34196, 49468, 61388, 68392, 98936, 122776, 136784, 197872, 245552, 1273801, 2547602, 5095204, 10190408, 20380816]

約数ペア:

[(1, 20380816), (2, 10190408), (4, 5095204), (8, 2547602), (16, 1273801), (83, 245552), (103, 197872), (149, 136784), (166, 122776), (206, 98936), (298, 68392), (332, 61388), (412, 49468), (596, 34196), (664, 30694), (824, 24734), (1192, 17098), (1328, 15347), (1648, 12367), (2384, 8549)]