28400078

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 51425280

約数和(自身を除く): 23025202

約数列:

[1, 2, 7, 14, 23, 46, 89, 161, 178, 322, 623, 991, 1246, 1982, 2047, 4094, 6937, 13874, 14329, 22793, 28658, 45586, 88199, 159551, 176398, 319102, 617393, 1234786, 2028577, 4057154, 14200039, 28400078]

約数ペア:

[(1, 28400078), (2, 14200039), (7, 4057154), (14, 2028577), (23, 1234786), (46, 617393), (89, 319102), (161, 176398), (178, 159551), (322, 88199), (623, 45586), (991, 28658), (1246, 22793), (1982, 14329), (2047, 13874), (4094, 6937)]