18716568

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 32086632

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 239, 251, 312, 478, 502, 717, 753, 956, 1004, 1434, 1506, 1912, 2008, 2868, 3012, 3107, 3263, 5736, 6024, 6214, 6526, 9321, 9789, 12428, 13052, 18642, 19578, 24856, 26104, 37284, 39156, 59989, 74568, 78312, 119978, 179967, 239956, 359934, 479912, 719868, 779857, 1439736, 1559714, 2339571, 3119428, 4679142, 6238856, 9358284, 18716568]

約数ペア:

[(1, 18716568), (2, 9358284), (3, 6238856), (4, 4679142), (6, 3119428), (8, 2339571), (12, 1559714), (13, 1439736), (24, 779857), (26, 719868), (39, 479912), (52, 359934), (78, 239956), (104, 179967), (156, 119978), (239, 78312), (251, 74568), (312, 59989), (478, 39156), (502, 37284), (717, 26104), (753, 24856), (956, 19578), (1004, 18642), (1434, 13052), (1506, 12428), (1912, 9789), (2008, 9321), (2868, 6526), (3012, 6214), (3107, 6024), (3263, 5736)]