1661968

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 80

約数和(自身を含む): 4285440

約数和(自身を除く): 2623472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 71, 76, 77, 88, 112, 133, 142, 152, 154, 176, 209, 266, 284, 304, 308, 418, 497, 532, 568, 616, 781, 836, 994, 1064, 1136, 1232, 1349, 1463, 1562, 1672, 1988, 2128, 2698, 2926, 3124, 3344, 3976, 5396, 5467, 5852, 6248, 7952, 9443, 10792, 10934, 11704, 12496, 14839, 18886, 21584, 21868, 23408, 29678, 37772, 43736, 59356, 75544, 87472, 103873, 118712, 151088, 207746, 237424, 415492, 830984, 1661968]

約数ペア:

[(1, 1661968), (2, 830984), (4, 415492), (7, 237424), (8, 207746), (11, 151088), (14, 118712), (16, 103873), (19, 87472), (22, 75544), (28, 59356), (38, 43736), (44, 37772), (56, 29678), (71, 23408), (76, 21868), (77, 21584), (88, 18886), (112, 14839), (133, 12496), (142, 11704), (152, 10934), (154, 10792), (176, 9443), (209, 7952), (266, 6248), (284, 5852), (304, 5467), (308, 5396), (418, 3976), (497, 3344), (532, 3124), (568, 2926), (616, 2698), (781, 2128), (836, 1988), (994, 1672), (1064, 1562), (1136, 1463), (1232, 1349)]