128520978

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:983

約数の個数: 64

約数和(自身を含む): 286433280

約数和(自身を除く): 157912302

約数列:

[1, 2, 3, 6, 19, 31, 38, 41, 57, 62, 82, 93, 114, 123, 186, 246, 589, 779, 887, 1178, 1271, 1558, 1767, 1774, 2337, 2542, 2661, 3534, 3813, 4674, 5322, 7626, 16853, 24149, 27497, 33706, 36367, 48298, 50559, 54994, 72447, 72734, 82491, 101118, 109101, 144894, 164982, 218202, 522443, 690973, 1044886, 1127377, 1381946, 1567329, 2072919, 2254754, 3134658, 3382131, 4145838, 6764262, 21420163, 42840326, 64260489, 128520978]

約数ペア:

[(1, 128520978), (2, 64260489), (3, 42840326), (6, 21420163), (19, 6764262), (31, 4145838), (38, 3382131), (41, 3134658), (57, 2254754), (62, 2072919), (82, 1567329), (93, 1381946), (114, 1127377), (123, 1044886), (186, 690973), (246, 522443), (589, 218202), (779, 164982), (887, 144894), (1178, 109101), (1271, 101118), (1558, 82491), (1767, 72734), (1774, 72447), (2337, 54994), (2542, 50559), (2661, 48298), (3534, 36367), (3813, 33706), (4674, 27497), (5322, 24149), (7626, 16853)]