51661876

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 111321000

約数和(自身を除く): 59659124

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 61, 98, 116, 122, 149, 196, 203, 244, 298, 406, 427, 596, 812, 854, 1043, 1421, 1708, 1769, 2086, 2842, 2989, 3538, 4172, 4321, 5684, 5978, 7076, 7301, 8642, 9089, 11956, 12383, 14602, 17284, 18178, 24766, 29204, 30247, 36356, 49532, 60494, 63623, 86681, 120988, 127246, 173362, 211729, 254492, 263581, 346724, 423458, 445361, 527162, 846916, 890722, 1054324, 1781444, 1845067, 3690134, 7380268, 12915469, 25830938, 51661876]

約数ペア:

[(1, 51661876), (2, 25830938), (4, 12915469), (7, 7380268), (14, 3690134), (28, 1845067), (29, 1781444), (49, 1054324), (58, 890722), (61, 846916), (98, 527162), (116, 445361), (122, 423458), (149, 346724), (196, 263581), (203, 254492), (244, 211729), (298, 173362), (406, 127246), (427, 120988), (596, 86681), (812, 63623), (854, 60494), (1043, 49532), (1421, 36356), (1708, 30247), (1769, 29204), (2086, 24766), (2842, 18178), (2989, 17284), (3538, 14602), (4172, 12383), (4321, 11956), (5684, 9089), (5978, 8642), (7076, 7301)]