31500784

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 74638080

約数和(自身を除く): 43137296

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 113, 131, 133, 152, 226, 262, 266, 304, 452, 524, 532, 791, 904, 917, 1048, 1064, 1582, 1808, 1834, 2096, 2128, 2147, 2489, 3164, 3668, 4294, 4978, 6328, 7336, 8588, 9956, 12656, 14672, 14803, 15029, 17176, 17423, 19912, 29606, 30058, 34352, 34846, 39824, 59212, 60116, 69692, 103621, 118424, 120232, 139384, 207242, 236848, 240464, 278768, 281257, 414484, 562514, 828968, 1125028, 1657936, 1968799, 2250056, 3937598, 4500112, 7875196, 15750392, 31500784]

約数ペア:

[(1, 31500784), (2, 15750392), (4, 7875196), (7, 4500112), (8, 3937598), (14, 2250056), (16, 1968799), (19, 1657936), (28, 1125028), (38, 828968), (56, 562514), (76, 414484), (112, 281257), (113, 278768), (131, 240464), (133, 236848), (152, 207242), (226, 139384), (262, 120232), (266, 118424), (304, 103621), (452, 69692), (524, 60116), (532, 59212), (791, 39824), (904, 34846), (917, 34352), (1048, 30058), (1064, 29606), (1582, 19912), (1808, 17423), (1834, 17176), (2096, 15029), (2128, 14803), (2147, 14672), (2489, 12656), (3164, 9956), (3668, 8588), (4294, 7336), (4978, 6328)]