128982784

素因数分解:

$2^8\times 7^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 296690688

約数和(自身を除く): 167707904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 167, 224, 256, 334, 431, 448, 668, 862, 896, 1169, 1336, 1724, 1792, 2338, 2672, 3017, 3448, 4676, 5344, 6034, 6896, 9352, 10688, 12068, 13792, 18704, 21376, 24136, 27584, 37408, 42752, 48272, 55168, 71977, 74816, 96544, 110336, 143954, 149632, 193088, 287908, 299264, 386176, 503839, 575816, 772352, 1007678, 1151632, 2015356, 2303264, 4030712, 4606528, 8061424, 9213056, 16122848, 18426112, 32245696, 64491392, 128982784]

約数ペア:

[(1, 128982784), (2, 64491392), (4, 32245696), (7, 18426112), (8, 16122848), (14, 9213056), (16, 8061424), (28, 4606528), (32, 4030712), (56, 2303264), (64, 2015356), (112, 1151632), (128, 1007678), (167, 772352), (224, 575816), (256, 503839), (334, 386176), (431, 299264), (448, 287908), (668, 193088), (862, 149632), (896, 143954), (1169, 110336), (1336, 96544), (1724, 74816), (1792, 71977), (2338, 55168), (2672, 48272), (3017, 42752), (3448, 37408), (4676, 27584), (5344, 24136), (6034, 21376), (6896, 18704), (9352, 13792), (10688, 12068)]