20117295

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 128

約数和(自身を含む): 44236800

約数和(自身を除く): 24119505

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 27, 31, 33, 45, 55, 57, 69, 93, 95, 99, 115, 135, 155, 165, 171, 207, 209, 253, 279, 285, 297, 341, 345, 437, 465, 495, 513, 589, 621, 627, 713, 759, 837, 855, 1023, 1035, 1045, 1265, 1311, 1395, 1485, 1705, 1767, 1881, 2139, 2185, 2277, 2565, 2945, 3069, 3105, 3135, 3565, 3795, 3933, 4185, 4807, 5115, 5301, 5643, 6417, 6479, 6555, 6831, 7843, 8835, 9207, 9405, 10695, 11385, 11799, 13547, 14421, 15345, 15903, 19251, 19437, 19665, 23529, 24035, 26505, 28215, 32085, 32395, 34155, 39215, 40641, 43263, 46035, 58311, 58995, 67735, 70587, 72105, 79515, 96255, 97185, 117645, 121923, 129789, 149017, 174933, 203205, 211761, 216315, 291555, 352935, 365769, 447051, 609615, 648945, 745085, 874665, 1058805, 1341153, 1828845, 2235255, 4023459, 6705765, 20117295]

約数ペア:

[(1, 20117295), (3, 6705765), (5, 4023459), (9, 2235255), (11, 1828845), (15, 1341153), (19, 1058805), (23, 874665), (27, 745085), (31, 648945), (33, 609615), (45, 447051), (55, 365769), (57, 352935), (69, 291555), (93, 216315), (95, 211761), (99, 203205), (115, 174933), (135, 149017), (155, 129789), (165, 121923), (171, 117645), (207, 97185), (209, 96255), (253, 79515), (279, 72105), (285, 70587), (297, 67735), (341, 58995), (345, 58311), (437, 46035), (465, 43263), (495, 40641), (513, 39215), (589, 34155), (621, 32395), (627, 32085), (713, 28215), (759, 26505), (837, 24035), (855, 23529), (1023, 19665), (1035, 19437), (1045, 19251), (1265, 15903), (1311, 15345), (1395, 14421), (1485, 13547), (1705, 11799), (1767, 11385), (1881, 10695), (2139, 9405), (2185, 9207), (2277, 8835), (2565, 7843), (2945, 6831), (3069, 6555), (3105, 6479), (3135, 6417), (3565, 5643), (3795, 5301), (3933, 5115), (4185, 4807)]