128519153278

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{402581}}^1$

素因数の和:402904

約数の個数: 32

約数和(自身を含む): 210244423680

約数和(自身を除く): 81725270402

約数列:

[1, 2, 19, 31, 38, 62, 271, 542, 589, 1178, 5149, 8401, 10298, 16802, 159619, 319238, 402581, 805162, 7649039, 12480011, 15298078, 24960022, 109099451, 218198902, 237120209, 474240418, 2072889569, 3382082981, 4145779138, 6764165962, 64259576639, 128519153278]

約数ペア:

[(1, 128519153278), (2, 64259576639), (19, 6764165962), (31, 4145779138), (38, 3382082981), (62, 2072889569), (271, 474240418), (542, 237120209), (589, 218198902), (1178, 109099451), (5149, 24960022), (8401, 15298078), (10298, 12480011), (16802, 7649039), (159619, 805162), (319238, 402581)]