209567120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:497

約数の個数: 120

約数和(自身を含む): 571787064

約数和(自身を除く): 362219944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 193, 196, 245, 277, 280, 386, 392, 490, 554, 560, 772, 784, 965, 980, 1108, 1351, 1385, 1544, 1930, 1939, 1960, 2216, 2702, 2770, 3088, 3860, 3878, 3920, 4432, 5404, 5540, 6755, 7720, 7756, 9457, 9695, 10808, 11080, 13510, 13573, 15440, 15512, 18914, 19390, 21616, 22160, 27020, 27146, 31024, 37828, 38780, 47285, 53461, 54040, 54292, 67865, 75656, 77560, 94570, 106922, 108080, 108584, 135730, 151312, 155120, 189140, 213844, 217168, 267305, 271460, 374227, 378280, 427688, 534610, 542920, 748454, 756560, 855376, 1069220, 1085840, 1496908, 1871135, 2138440, 2619589, 2993816, 3742270, 4276880, 5239178, 5987632, 7484540, 10478356, 13097945, 14969080, 20956712, 26195890, 29938160, 41913424, 52391780, 104783560, 209567120]

約数ペア:

[(1, 209567120), (2, 104783560), (4, 52391780), (5, 41913424), (7, 29938160), (8, 26195890), (10, 20956712), (14, 14969080), (16, 13097945), (20, 10478356), (28, 7484540), (35, 5987632), (40, 5239178), (49, 4276880), (56, 3742270), (70, 2993816), (80, 2619589), (98, 2138440), (112, 1871135), (140, 1496908), (193, 1085840), (196, 1069220), (245, 855376), (277, 756560), (280, 748454), (386, 542920), (392, 534610), (490, 427688), (554, 378280), (560, 374227), (772, 271460), (784, 267305), (965, 217168), (980, 213844), (1108, 189140), (1351, 155120), (1385, 151312), (1544, 135730), (1930, 108584), (1939, 108080), (1960, 106922), (2216, 94570), (2702, 77560), (2770, 75656), (3088, 67865), (3860, 54292), (3878, 54040), (3920, 53461), (4432, 47285), (5404, 38780), (5540, 37828), (6755, 31024), (7720, 27146), (7756, 27020), (9457, 22160), (9695, 21616), (10808, 19390), (11080, 18914), (13510, 15512), (13573, 15440)]