131468960

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:479

約数の個数: 144

約数和(自身を含む): 371022120

約数和(自身を除く): 239553160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 160, 164, 196, 205, 224, 245, 280, 287, 328, 392, 409, 410, 490, 560, 574, 656, 784, 818, 820, 980, 1120, 1148, 1312, 1435, 1568, 1636, 1640, 1960, 2009, 2045, 2296, 2863, 2870, 3272, 3280, 3920, 4018, 4090, 4592, 5726, 5740, 6544, 6560, 7840, 8036, 8180, 9184, 10045, 11452, 11480, 13088, 14315, 16072, 16360, 16769, 20041, 20090, 22904, 22960, 28630, 32144, 32720, 33538, 40082, 40180, 45808, 45920, 57260, 64288, 65440, 67076, 80164, 80360, 83845, 91616, 100205, 114520, 117383, 134152, 160328, 160720, 167690, 200410, 229040, 234766, 268304, 320656, 321440, 335380, 400820, 458080, 469532, 536608, 586915, 641312, 670760, 801640, 821681, 939064, 1173830, 1341520, 1603280, 1643362, 1878128, 2347660, 2683040, 3206560, 3286724, 3756256, 4108405, 4695320, 6573448, 8216810, 9390640, 13146896, 16433620, 18781280, 26293792, 32867240, 65734480, 131468960]

約数ペア:

[(1, 131468960), (2, 65734480), (4, 32867240), (5, 26293792), (7, 18781280), (8, 16433620), (10, 13146896), (14, 9390640), (16, 8216810), (20, 6573448), (28, 4695320), (32, 4108405), (35, 3756256), (40, 3286724), (41, 3206560), (49, 2683040), (56, 2347660), (70, 1878128), (80, 1643362), (82, 1603280), (98, 1341520), (112, 1173830), (140, 939064), (160, 821681), (164, 801640), (196, 670760), (205, 641312), (224, 586915), (245, 536608), (280, 469532), (287, 458080), (328, 400820), (392, 335380), (409, 321440), (410, 320656), (490, 268304), (560, 234766), (574, 229040), (656, 200410), (784, 167690), (818, 160720), (820, 160328), (980, 134152), (1120, 117383), (1148, 114520), (1312, 100205), (1435, 91616), (1568, 83845), (1636, 80360), (1640, 80164), (1960, 67076), (2009, 65440), (2045, 64288), (2296, 57260), (2863, 45920), (2870, 45808), (3272, 40180), (3280, 40082), (3920, 33538), (4018, 32720), (4090, 32144), (4592, 28630), (5726, 22960), (5740, 22904), (6544, 20090), (6560, 20041), (7840, 16769), (8036, 16360), (8180, 16072), (9184, 14315), (10045, 13088), (11452, 11480)]