68278840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 184757760

約数和(自身を除く): 116478920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 53, 56, 70, 86, 106, 107, 140, 172, 212, 214, 215, 265, 280, 301, 344, 371, 424, 428, 430, 530, 535, 602, 742, 749, 856, 860, 1060, 1070, 1204, 1484, 1498, 1505, 1720, 1855, 2120, 2140, 2279, 2408, 2968, 2996, 3010, 3710, 3745, 4280, 4558, 4601, 5671, 5992, 6020, 7420, 7490, 9116, 9202, 11342, 11395, 12040, 14840, 14980, 15953, 18232, 18404, 22684, 22790, 23005, 28355, 29960, 31906, 32207, 36808, 39697, 45368, 45580, 46010, 56710, 63812, 64414, 79394, 79765, 91160, 92020, 113420, 127624, 128828, 158788, 159530, 161035, 184040, 198485, 226840, 243853, 257656, 317576, 319060, 322070, 396970, 487706, 638120, 644140, 793940, 975412, 1219265, 1288280, 1587880, 1706971, 1950824, 2438530, 3413942, 4877060, 6827884, 8534855, 9754120, 13655768, 17069710, 34139420, 68278840]

約数ペア:

[(1, 68278840), (2, 34139420), (4, 17069710), (5, 13655768), (7, 9754120), (8, 8534855), (10, 6827884), (14, 4877060), (20, 3413942), (28, 2438530), (35, 1950824), (40, 1706971), (43, 1587880), (53, 1288280), (56, 1219265), (70, 975412), (86, 793940), (106, 644140), (107, 638120), (140, 487706), (172, 396970), (212, 322070), (214, 319060), (215, 317576), (265, 257656), (280, 243853), (301, 226840), (344, 198485), (371, 184040), (424, 161035), (428, 159530), (430, 158788), (530, 128828), (535, 127624), (602, 113420), (742, 92020), (749, 91160), (856, 79765), (860, 79394), (1060, 64414), (1070, 63812), (1204, 56710), (1484, 46010), (1498, 45580), (1505, 45368), (1720, 39697), (1855, 36808), (2120, 32207), (2140, 31906), (2279, 29960), (2408, 28355), (2968, 23005), (2996, 22790), (3010, 22684), (3710, 18404), (3745, 18232), (4280, 15953), (4558, 14980), (4601, 14840), (5671, 12040), (5992, 11395), (6020, 11342), (7420, 9202), (7490, 9116)]