13821920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 144

約数和(自身を含む): 39817008

約数和(自身を除く): 25995088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 43, 49, 56, 70, 80, 82, 86, 98, 112, 140, 160, 164, 172, 196, 205, 215, 224, 245, 280, 287, 301, 328, 344, 392, 410, 430, 490, 560, 574, 602, 656, 688, 784, 820, 860, 980, 1120, 1148, 1204, 1312, 1376, 1435, 1505, 1568, 1640, 1720, 1763, 1960, 2009, 2107, 2296, 2408, 2870, 3010, 3280, 3440, 3526, 3920, 4018, 4214, 4592, 4816, 5740, 6020, 6560, 6880, 7052, 7840, 8036, 8428, 8815, 9184, 9632, 10045, 10535, 11480, 12040, 12341, 14104, 16072, 16856, 17630, 20090, 21070, 22960, 24080, 24682, 28208, 32144, 33712, 35260, 40180, 42140, 45920, 48160, 49364, 56416, 61705, 64288, 67424, 70520, 80360, 84280, 86387, 98728, 123410, 141040, 160720, 168560, 172774, 197456, 246820, 282080, 321440, 337120, 345548, 394912, 431935, 493640, 691096, 863870, 987280, 1382192, 1727740, 1974560, 2764384, 3455480, 6910960, 13821920]

約数ペア:

[(1, 13821920), (2, 6910960), (4, 3455480), (5, 2764384), (7, 1974560), (8, 1727740), (10, 1382192), (14, 987280), (16, 863870), (20, 691096), (28, 493640), (32, 431935), (35, 394912), (40, 345548), (41, 337120), (43, 321440), (49, 282080), (56, 246820), (70, 197456), (80, 172774), (82, 168560), (86, 160720), (98, 141040), (112, 123410), (140, 98728), (160, 86387), (164, 84280), (172, 80360), (196, 70520), (205, 67424), (215, 64288), (224, 61705), (245, 56416), (280, 49364), (287, 48160), (301, 45920), (328, 42140), (344, 40180), (392, 35260), (410, 33712), (430, 32144), (490, 28208), (560, 24682), (574, 24080), (602, 22960), (656, 21070), (688, 20090), (784, 17630), (820, 16856), (860, 16072), (980, 14104), (1120, 12341), (1148, 12040), (1204, 11480), (1312, 10535), (1376, 10045), (1435, 9632), (1505, 9184), (1568, 8815), (1640, 8428), (1720, 8036), (1763, 7840), (1960, 7052), (2009, 6880), (2107, 6560), (2296, 6020), (2408, 5740), (2870, 4816), (3010, 4592), (3280, 4214), (3440, 4018), (3526, 3920)]