81971178

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 180558720

約数和(自身を除く): 98587542

約数列:

[1, 2, 3, 6, 17, 34, 51, 53, 59, 102, 106, 118, 159, 177, 257, 318, 354, 514, 771, 901, 1003, 1542, 1802, 2006, 2703, 3009, 3127, 4369, 5406, 6018, 6254, 8738, 9381, 13107, 13621, 15163, 18762, 26214, 27242, 30326, 40863, 45489, 53159, 81726, 90978, 106318, 159477, 231557, 257771, 318954, 463114, 515542, 694671, 773313, 803639, 1389342, 1546626, 1607278, 2410917, 4821834, 13661863, 27323726, 40985589, 81971178]

約数ペア:

[(1, 81971178), (2, 40985589), (3, 27323726), (6, 13661863), (17, 4821834), (34, 2410917), (51, 1607278), (53, 1546626), (59, 1389342), (102, 803639), (106, 773313), (118, 694671), (159, 515542), (177, 463114), (257, 318954), (318, 257771), (354, 231557), (514, 159477), (771, 106318), (901, 90978), (1003, 81726), (1542, 53159), (1802, 45489), (2006, 40863), (2703, 30326), (3009, 27242), (3127, 26214), (4369, 18762), (5406, 15163), (6018, 13621), (6254, 13107), (8738, 9381)]