80571680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 227525760

約数和(自身を除く): 146954080

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, 239, 245, 280, 301, 344, 392, 430, 478, 490, 560, 602, 688, 784, 860, 956, 980, 1120, 1195, 1204, 1376, 1505, 1568, 1673, 1720, 1912, 1960, 2107, 2390, 2408, 3010, 3346, 3440, 3824, 3920, 4214, 4780, 4816, 6020, 6692, 6880, 7648, 7840, 8365, 8428, 9560, 9632, 10277, 10535, 11711, 12040, 13384, 16730, 16856, 19120, 20554, 21070, 23422, 24080, 26768, 33460, 33712, 38240, 41108, 42140, 46844, 48160, 51385, 53536, 58555, 66920, 67424, 71939, 82216, 84280, 93688, 102770, 117110, 133840, 143878, 164432, 168560, 187376, 205540, 234220, 267680, 287756, 328864, 337120, 359695, 374752, 411080, 468440, 503573, 575512, 719390, 822160, 936880, 1007146, 1151024, 1438780, 1644320, 1873760, 2014292, 2302048, 2517865, 2877560, 4028584, 5035730, 5755120, 8057168, 10071460, 11510240, 16114336, 20142920, 40285840, 80571680]

約数ペア:

[(1, 80571680), (2, 40285840), (4, 20142920), (5, 16114336), (7, 11510240), (8, 10071460), (10, 8057168), (14, 5755120), (16, 5035730), (20, 4028584), (28, 2877560), (32, 2517865), (35, 2302048), (40, 2014292), (43, 1873760), (49, 1644320), (56, 1438780), (70, 1151024), (80, 1007146), (86, 936880), (98, 822160), (112, 719390), (140, 575512), (160, 503573), (172, 468440), (196, 411080), (215, 374752), (224, 359695), (239, 337120), (245, 328864), (280, 287756), (301, 267680), (344, 234220), (392, 205540), (430, 187376), (478, 168560), (490, 164432), (560, 143878), (602, 133840), (688, 117110), (784, 102770), (860, 93688), (956, 84280), (980, 82216), (1120, 71939), (1195, 67424), (1204, 66920), (1376, 58555), (1505, 53536), (1568, 51385), (1673, 48160), (1720, 46844), (1912, 42140), (1960, 41108), (2107, 38240), (2390, 33712), (2408, 33460), (3010, 26768), (3346, 24080), (3440, 23422), (3824, 21070), (3920, 20554), (4214, 19120), (4780, 16856), (4816, 16730), (6020, 13384), (6692, 12040), (6880, 11711), (7648, 10535), (7840, 10277), (8365, 9632), (8428, 9560)]