2556189909

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:840

約数の個数: 144

約数和(自身を含む): 5032634880

約数和(自身を除く): 2476444971

約数列:

[1, 3, 7, 9, 13, 19, 21, 31, 39, 49, 57, 63, 91, 93, 117, 133, 147, 171, 217, 247, 273, 279, 399, 403, 441, 589, 637, 651, 741, 757, 819, 931, 1197, 1209, 1519, 1729, 1767, 1911, 1953, 2223, 2271, 2793, 2821, 3627, 4123, 4557, 5187, 5299, 5301, 5733, 6813, 7657, 8379, 8463, 9841, 12103, 12369, 13671, 14383, 15561, 15897, 19747, 22971, 23467, 25389, 28861, 29523, 36309, 37093, 37107, 43149, 47691, 53599, 59241, 68887, 68913, 70401, 86583, 88569, 100681, 108927, 111279, 129447, 160797, 164269, 177723, 186979, 206661, 211203, 259749, 302043, 305071, 333837, 375193, 445873, 482209, 482391, 492807, 560937, 619983, 704767, 906129, 915213, 1125579, 1149883, 1308853, 1337619, 1446627, 1478421, 1682811, 2114301, 2135497, 2745639, 3121111, 3376737, 3449649, 3926559, 4012857, 4339881, 5796349, 6342903, 6406491, 9161971, 9363333, 10348947, 11779677, 14948479, 17389047, 19219473, 21847777, 27485913, 28089999, 40574443, 44845437, 52167141, 65543331, 82457739, 121723329, 134536311, 196629993, 284021101, 365169987, 852063303, 2556189909]

約数ペア:

[(1, 2556189909), (3, 852063303), (7, 365169987), (9, 284021101), (13, 196629993), (19, 134536311), (21, 121723329), (31, 82457739), (39, 65543331), (49, 52167141), (57, 44845437), (63, 40574443), (91, 28089999), (93, 27485913), (117, 21847777), (133, 19219473), (147, 17389047), (171, 14948479), (217, 11779677), (247, 10348947), (273, 9363333), (279, 9161971), (399, 6406491), (403, 6342903), (441, 5796349), (589, 4339881), (637, 4012857), (651, 3926559), (741, 3449649), (757, 3376737), (819, 3121111), (931, 2745639), (1197, 2135497), (1209, 2114301), (1519, 1682811), (1729, 1478421), (1767, 1446627), (1911, 1337619), (1953, 1308853), (2223, 1149883), (2271, 1125579), (2793, 915213), (2821, 906129), (3627, 704767), (4123, 619983), (4557, 560937), (5187, 492807), (5299, 482391), (5301, 482209), (5733, 445873), (6813, 375193), (7657, 333837), (8379, 305071), (8463, 302043), (9841, 259749), (12103, 211203), (12369, 206661), (13671, 186979), (14383, 177723), (15561, 164269), (15897, 160797), (19747, 129447), (22971, 111279), (23467, 108927), (25389, 100681), (28861, 88569), (29523, 86583), (36309, 70401), (37093, 68913), (37107, 68887), (43149, 59241), (47691, 53599)]