80740240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:549

約数の個数: 120

約数和(自身を含む): 223914240

約数和(自身を除く): 143174000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 479, 490, 560, 602, 688, 784, 860, 958, 980, 1204, 1505, 1720, 1916, 1960, 2107, 2395, 2408, 3010, 3353, 3440, 3832, 3920, 4214, 4790, 4816, 6020, 6706, 7664, 8428, 9580, 10535, 12040, 13412, 16765, 16856, 19160, 20597, 21070, 23471, 24080, 26824, 33530, 33712, 38320, 41194, 42140, 46942, 53648, 67060, 82388, 84280, 93884, 102985, 117355, 134120, 144179, 164776, 168560, 187768, 205970, 234710, 268240, 288358, 329552, 375536, 411940, 469420, 576716, 720895, 823880, 938840, 1009253, 1153432, 1441790, 1647760, 1877680, 2018506, 2306864, 2883580, 4037012, 5046265, 5767160, 8074024, 10092530, 11534320, 16148048, 20185060, 40370120, 80740240]

約数ペア:

[(1, 80740240), (2, 40370120), (4, 20185060), (5, 16148048), (7, 11534320), (8, 10092530), (10, 8074024), (14, 5767160), (16, 5046265), (20, 4037012), (28, 2883580), (35, 2306864), (40, 2018506), (43, 1877680), (49, 1647760), (56, 1441790), (70, 1153432), (80, 1009253), (86, 938840), (98, 823880), (112, 720895), (140, 576716), (172, 469420), (196, 411940), (215, 375536), (245, 329552), (280, 288358), (301, 268240), (344, 234710), (392, 205970), (430, 187768), (479, 168560), (490, 164776), (560, 144179), (602, 134120), (688, 117355), (784, 102985), (860, 93884), (958, 84280), (980, 82388), (1204, 67060), (1505, 53648), (1720, 46942), (1916, 42140), (1960, 41194), (2107, 38320), (2395, 33712), (2408, 33530), (3010, 26824), (3353, 24080), (3440, 23471), (3832, 21070), (3920, 20597), (4214, 19160), (4790, 16856), (4816, 16765), (6020, 13412), (6706, 12040), (7664, 10535), (8428, 9580)]