128976640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:394

約数の個数: 144

約数和(自身を含む): 348199488

約数和(自身を除く): 219222848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 256, 260, 299, 320, 337, 368, 416, 460, 520, 598, 640, 674, 736, 832, 920, 1040, 1196, 1280, 1348, 1472, 1495, 1664, 1685, 1840, 2080, 2392, 2696, 2944, 2990, 3328, 3370, 3680, 4160, 4381, 4784, 5392, 5888, 5980, 6740, 7360, 7751, 8320, 8762, 9568, 10784, 11960, 13480, 14720, 15502, 16640, 17524, 19136, 21568, 21905, 23920, 26960, 29440, 31004, 35048, 38272, 38755, 43136, 43810, 47840, 53920, 62008, 70096, 76544, 77510, 86272, 87620, 95680, 100763, 107840, 124016, 140192, 155020, 175240, 191360, 201526, 215680, 248032, 280384, 310040, 350480, 382720, 403052, 431360, 496064, 503815, 560768, 620080, 700960, 806104, 992128, 1007630, 1121536, 1240160, 1401920, 1612208, 1984256, 2015260, 2480320, 2803840, 3224416, 4030520, 4960640, 5607680, 6448832, 8061040, 9921280, 12897664, 16122080, 25795328, 32244160, 64488320, 128976640]

約数ペア:

[(1, 128976640), (2, 64488320), (4, 32244160), (5, 25795328), (8, 16122080), (10, 12897664), (13, 9921280), (16, 8061040), (20, 6448832), (23, 5607680), (26, 4960640), (32, 4030520), (40, 3224416), (46, 2803840), (52, 2480320), (64, 2015260), (65, 1984256), (80, 1612208), (92, 1401920), (104, 1240160), (115, 1121536), (128, 1007630), (130, 992128), (160, 806104), (184, 700960), (208, 620080), (230, 560768), (256, 503815), (260, 496064), (299, 431360), (320, 403052), (337, 382720), (368, 350480), (416, 310040), (460, 280384), (520, 248032), (598, 215680), (640, 201526), (674, 191360), (736, 175240), (832, 155020), (920, 140192), (1040, 124016), (1196, 107840), (1280, 100763), (1348, 95680), (1472, 87620), (1495, 86272), (1664, 77510), (1685, 76544), (1840, 70096), (2080, 62008), (2392, 53920), (2696, 47840), (2944, 43810), (2990, 43136), (3328, 38755), (3370, 38272), (3680, 35048), (4160, 31004), (4381, 29440), (4784, 26960), (5392, 23920), (5888, 21905), (5980, 21568), (6740, 19136), (7360, 17524), (7751, 16640), (8320, 15502), (8762, 14720), (9568, 13480), (10784, 11960)]