259996178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1109}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 429649920

約数和(自身を除く): 169653742

約数列:

[1, 2, 13, 26, 71, 127, 142, 254, 923, 1109, 1651, 1846, 2218, 3302, 9017, 14417, 18034, 28834, 78739, 117221, 140843, 157478, 234442, 281686, 1023607, 1830959, 2047214, 3661918, 9999853, 19999706, 129998089, 259996178]

約数ペア:

[(1, 259996178), (2, 129998089), (13, 19999706), (26, 9999853), (71, 3661918), (127, 2047214), (142, 1830959), (254, 1023607), (923, 281686), (1109, 234442), (1651, 157478), (1846, 140843), (2218, 117221), (3302, 78739), (9017, 28834), (14417, 18034)]