256467340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{1109}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 557948160

約数和(自身を除く): 301480820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 373, 620, 746, 1109, 1492, 1865, 2218, 3730, 4436, 5545, 7460, 11090, 11563, 22180, 23126, 34379, 46252, 57815, 68758, 115630, 137516, 171895, 231260, 343790, 413657, 687580, 827314, 1654628, 2068285, 4136570, 8273140, 12823367, 25646734, 51293468, 64116835, 128233670, 256467340]

約数ペア:

[(1, 256467340), (2, 128233670), (4, 64116835), (5, 51293468), (10, 25646734), (20, 12823367), (31, 8273140), (62, 4136570), (124, 2068285), (155, 1654628), (310, 827314), (373, 687580), (620, 413657), (746, 343790), (1109, 231260), (1492, 171895), (1865, 137516), (2218, 115630), (3730, 68758), (4436, 57815), (5545, 46252), (7460, 34379), (11090, 23126), (11563, 22180)]