51491330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 108241920

約数和(自身を除く): 56750590

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 71, 95, 110, 142, 190, 209, 347, 355, 418, 694, 710, 781, 1045, 1349, 1562, 1735, 2090, 2698, 3470, 3817, 3905, 6593, 6745, 7634, 7810, 13186, 13490, 14839, 19085, 24637, 29678, 32965, 38170, 49274, 65930, 72523, 74195, 123185, 145046, 148390, 246370, 271007, 362615, 468103, 542014, 725230, 936206, 1355035, 2340515, 2710070, 4681030, 5149133, 10298266, 25745665, 51491330]

約数ペア:

[(1, 51491330), (2, 25745665), (5, 10298266), (10, 5149133), (11, 4681030), (19, 2710070), (22, 2340515), (38, 1355035), (55, 936206), (71, 725230), (95, 542014), (110, 468103), (142, 362615), (190, 271007), (209, 246370), (347, 148390), (355, 145046), (418, 123185), (694, 74195), (710, 72523), (781, 65930), (1045, 49274), (1349, 38170), (1562, 32965), (1735, 29678), (2090, 24637), (2698, 19085), (3470, 14839), (3817, 13490), (3905, 13186), (6593, 7810), (6745, 7634)]