25666628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 50379840

約数和(自身を除く): 24713212

約数列:

[1, 2, 4, 13, 26, 52, 53, 67, 106, 134, 139, 212, 268, 278, 556, 689, 871, 1378, 1742, 1807, 2756, 3484, 3551, 3614, 7102, 7228, 7367, 9313, 14204, 14734, 18626, 29468, 37252, 46163, 92326, 95771, 121069, 184652, 191542, 242138, 383084, 484276, 493589, 987178, 1974356, 6416657, 12833314, 25666628]

約数ペア:

[(1, 25666628), (2, 12833314), (4, 6416657), (13, 1974356), (26, 987178), (52, 493589), (53, 484276), (67, 383084), (106, 242138), (134, 191542), (139, 184652), (212, 121069), (268, 95771), (278, 92326), (556, 46163), (689, 37252), (871, 29468), (1378, 18626), (1742, 14734), (1807, 14204), (2756, 9313), (3484, 7367), (3551, 7228), (3614, 7102)]