204631840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:679

約数の個数: 144

約数和(自身を含む): 576398592

約数和(自身を除く): 371766752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 160, 172, 196, 215, 224, 245, 280, 301, 344, 392, 430, 490, 560, 602, 607, 688, 784, 860, 980, 1120, 1204, 1214, 1376, 1505, 1568, 1720, 1960, 2107, 2408, 2428, 3010, 3035, 3440, 3920, 4214, 4249, 4816, 4856, 6020, 6070, 6880, 7840, 8428, 8498, 9632, 9712, 10535, 12040, 12140, 16856, 16996, 19424, 21070, 21245, 24080, 24280, 26101, 29743, 33712, 33992, 42140, 42490, 48160, 48560, 52202, 59486, 67424, 67984, 84280, 84980, 97120, 104404, 118972, 130505, 135968, 148715, 168560, 169960, 182707, 208808, 237944, 261010, 297430, 337120, 339920, 365414, 417616, 475888, 522020, 594860, 679840, 730828, 835232, 913535, 951776, 1044040, 1189720, 1278949, 1461656, 1827070, 2088080, 2379440, 2557898, 2923312, 3654140, 4176160, 4758880, 5115796, 5846624, 6394745, 7308280, 10231592, 12789490, 14616560, 20463184, 25578980, 29233120, 40926368, 51157960, 102315920, 204631840]

約数ペア:

[(1, 204631840), (2, 102315920), (4, 51157960), (5, 40926368), (7, 29233120), (8, 25578980), (10, 20463184), (14, 14616560), (16, 12789490), (20, 10231592), (28, 7308280), (32, 6394745), (35, 5846624), (40, 5115796), (43, 4758880), (49, 4176160), (56, 3654140), (70, 2923312), (80, 2557898), (86, 2379440), (98, 2088080), (112, 1827070), (140, 1461656), (160, 1278949), (172, 1189720), (196, 1044040), (215, 951776), (224, 913535), (245, 835232), (280, 730828), (301, 679840), (344, 594860), (392, 522020), (430, 475888), (490, 417616), (560, 365414), (602, 339920), (607, 337120), (688, 297430), (784, 261010), (860, 237944), (980, 208808), (1120, 182707), (1204, 169960), (1214, 168560), (1376, 148715), (1505, 135968), (1568, 130505), (1720, 118972), (1960, 104404), (2107, 97120), (2408, 84980), (2428, 84280), (3010, 67984), (3035, 67424), (3440, 59486), (3920, 52202), (4214, 48560), (4249, 48160), (4816, 42490), (4856, 42140), (6020, 33992), (6070, 33712), (6880, 29743), (7840, 26101), (8428, 24280), (8498, 24080), (9632, 21245), (9712, 21070), (10535, 19424), (12040, 16996), (12140, 16856)]