28411292

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{877}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 61951680

約数和(自身を除く): 33540388

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 89, 91, 178, 182, 356, 364, 623, 877, 1157, 1246, 1754, 2314, 2492, 3508, 4628, 6139, 8099, 11401, 12278, 16198, 22802, 24556, 32396, 45604, 78053, 79807, 156106, 159614, 312212, 319228, 546371, 1014689, 1092742, 2029378, 2185484, 4058756, 7102823, 14205646, 28411292]

約数ペア:

[(1, 28411292), (2, 14205646), (4, 7102823), (7, 4058756), (13, 2185484), (14, 2029378), (26, 1092742), (28, 1014689), (52, 546371), (89, 319228), (91, 312212), (178, 159614), (182, 156106), (356, 79807), (364, 78053), (623, 45604), (877, 32396), (1157, 24556), (1246, 22802), (1754, 16198), (2314, 12278), (2492, 11401), (3508, 8099), (4628, 6139)]