19801956

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 48024704

約数和(自身を除く): 28222748

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 103, 111, 148, 206, 222, 309, 412, 433, 444, 618, 866, 1236, 1299, 1732, 2598, 3811, 5196, 7622, 11433, 15244, 16021, 22866, 32042, 44599, 45732, 48063, 64084, 89198, 96126, 133797, 178396, 192252, 267594, 535188, 1650163, 3300326, 4950489, 6600652, 9900978, 19801956]

約数ペア:

[(1, 19801956), (2, 9900978), (3, 6600652), (4, 4950489), (6, 3300326), (12, 1650163), (37, 535188), (74, 267594), (103, 192252), (111, 178396), (148, 133797), (206, 96126), (222, 89198), (309, 64084), (412, 48063), (433, 45732), (444, 44599), (618, 32042), (866, 22866), (1236, 16021), (1299, 15244), (1732, 11433), (2598, 7622), (3811, 5196)]