40285840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 120

約数和(自身を含む): 111957120

約数和(自身を除く): 71671280

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

約数ペア:

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