18035920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 120

約数和(自身を含む): 50380704

約数和(自身を除く): 32344784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 107, 112, 140, 172, 196, 214, 215, 245, 280, 301, 344, 392, 428, 430, 490, 535, 560, 602, 688, 749, 784, 856, 860, 980, 1070, 1204, 1498, 1505, 1712, 1720, 1960, 2107, 2140, 2408, 2996, 3010, 3440, 3745, 3920, 4214, 4280, 4601, 4816, 5243, 5992, 6020, 7490, 8428, 8560, 9202, 10486, 10535, 11984, 12040, 14980, 16856, 18404, 20972, 21070, 23005, 24080, 26215, 29960, 32207, 33712, 36808, 41944, 42140, 46010, 52430, 59920, 64414, 73616, 83888, 84280, 92020, 104860, 128828, 161035, 168560, 184040, 209720, 225449, 257656, 322070, 368080, 419440, 450898, 515312, 644140, 901796, 1127245, 1288280, 1803592, 2254490, 2576560, 3607184, 4508980, 9017960, 18035920]

約数ペア:

[(1, 18035920), (2, 9017960), (4, 4508980), (5, 3607184), (7, 2576560), (8, 2254490), (10, 1803592), (14, 1288280), (16, 1127245), (20, 901796), (28, 644140), (35, 515312), (40, 450898), (43, 419440), (49, 368080), (56, 322070), (70, 257656), (80, 225449), (86, 209720), (98, 184040), (107, 168560), (112, 161035), (140, 128828), (172, 104860), (196, 92020), (214, 84280), (215, 83888), (245, 73616), (280, 64414), (301, 59920), (344, 52430), (392, 46010), (428, 42140), (430, 41944), (490, 36808), (535, 33712), (560, 32207), (602, 29960), (688, 26215), (749, 24080), (784, 23005), (856, 21070), (860, 20972), (980, 18404), (1070, 16856), (1204, 14980), (1498, 12040), (1505, 11984), (1712, 10535), (1720, 10486), (1960, 9202), (2107, 8560), (2140, 8428), (2408, 7490), (2996, 6020), (3010, 5992), (3440, 5243), (3745, 4816), (3920, 4601), (4214, 4280)]