491920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:80

約数の個数: 80

約数和(自身を含む): 1374912

約数和(自身を除く): 882992

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 43, 44, 52, 55, 65, 80, 86, 88, 104, 110, 130, 143, 172, 176, 208, 215, 220, 260, 286, 344, 430, 440, 473, 520, 559, 572, 688, 715, 860, 880, 946, 1040, 1118, 1144, 1430, 1720, 1892, 2236, 2288, 2365, 2795, 2860, 3440, 3784, 4472, 4730, 5590, 5720, 6149, 7568, 8944, 9460, 11180, 11440, 12298, 18920, 22360, 24596, 30745, 37840, 44720, 49192, 61490, 98384, 122980, 245960, 491920]

約数ペア:

[(1, 491920), (2, 245960), (4, 122980), (5, 98384), (8, 61490), (10, 49192), (11, 44720), (13, 37840), (16, 30745), (20, 24596), (22, 22360), (26, 18920), (40, 12298), (43, 11440), (44, 11180), (52, 9460), (55, 8944), (65, 7568), (80, 6149), (86, 5720), (88, 5590), (104, 4730), (110, 4472), (130, 3784), (143, 3440), (172, 2860), (176, 2795), (208, 2365), (215, 2288), (220, 2236), (260, 1892), (286, 1720), (344, 1430), (430, 1144), (440, 1118), (473, 1040), (520, 946), (559, 880), (572, 860), (688, 715)]