256315088

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{3617}}^1$

素因数の和:3771

約数の個数: 40

約数和(自身を含む): 513235008

約数和(自身を除く): 256919920

約数列:

[1, 2, 4, 8, 16, 43, 86, 103, 172, 206, 344, 412, 688, 824, 1648, 3617, 4429, 7234, 8858, 14468, 17716, 28936, 35432, 57872, 70864, 155531, 311062, 372551, 622124, 745102, 1244248, 1490204, 2488496, 2980408, 5960816, 16019693, 32039386, 64078772, 128157544, 256315088]

約数ペア:

[(1, 256315088), (2, 128157544), (4, 64078772), (8, 32039386), (16, 16019693), (43, 5960816), (86, 2980408), (103, 2488496), (172, 1490204), (206, 1244248), (344, 745102), (412, 622124), (688, 372551), (824, 311062), (1648, 155531), (3617, 70864), (4429, 57872), (7234, 35432), (8858, 28936), (14468, 17716)]