320438780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 739694592

約数和(自身を除く): 419255812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 127, 164, 170, 181, 205, 254, 340, 362, 410, 508, 635, 697, 724, 820, 905, 1270, 1394, 1810, 2159, 2540, 2788, 3077, 3485, 3620, 4318, 5207, 6154, 6970, 7421, 8636, 10414, 10795, 12308, 13940, 14842, 15385, 20828, 21590, 22987, 26035, 29684, 30770, 37105, 43180, 45974, 52070, 61540, 74210, 88519, 91948, 104140, 114935, 126157, 148420, 177038, 229870, 252314, 354076, 390779, 442595, 459740, 504628, 630785, 781558, 885190, 942467, 1261570, 1563116, 1770380, 1884934, 1953895, 2523140, 3769868, 3907790, 4712335, 7815580, 9424670, 16021939, 18849340, 32043878, 64087756, 80109695, 160219390, 320438780]

約数ペア:

[(1, 320438780), (2, 160219390), (4, 80109695), (5, 64087756), (10, 32043878), (17, 18849340), (20, 16021939), (34, 9424670), (41, 7815580), (68, 4712335), (82, 3907790), (85, 3769868), (127, 2523140), (164, 1953895), (170, 1884934), (181, 1770380), (205, 1563116), (254, 1261570), (340, 942467), (362, 885190), (410, 781558), (508, 630785), (635, 504628), (697, 459740), (724, 442595), (820, 390779), (905, 354076), (1270, 252314), (1394, 229870), (1810, 177038), (2159, 148420), (2540, 126157), (2788, 114935), (3077, 104140), (3485, 91948), (3620, 88519), (4318, 74210), (5207, 61540), (6154, 52070), (6970, 45974), (7421, 43180), (8636, 37105), (10414, 30770), (10795, 29684), (12308, 26035), (13940, 22987), (14842, 21590), (15385, 20828)]